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220120212012102 = 23237874813778087
BaseRepresentation
bin110010000011001010111011…
…000010110111110001000110
31001212101021202001012111122200
4302003022323002313301012
5212322422143233341402
62100053455052135330
764236106024516053
oct6203127302676106
91055337661174580
10220120212012102
1164156504182316
1220830931767546
1395a932965b90c
143c4dc3741602a
151a6ac7280921c
hexc832bb0b7c46

220120212012102 has 48 divisors (see below), whose sum is σ = 489822777124512. Its totient is φ = 71389504068480.

The previous prime is 220120212012067. The next prime is 220120212012143. The reversal of 220120212012102 is 201210212021022.

It is a happy number.

220120212012102 is a `hidden beast` number, since 220 + 1 + 20 + 212 + 0 + 1 + 210 + 2 = 666.

It is a super-2 number, since 2×2201202120121022 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56373303 + ... + 60151389.

It is an arithmetic number, because the mean of its divisors is an integer number (10204641190094).

Almost surely, 2220120212012102 is an apocalyptic number.

220120212012102 is an abundant number, since it is smaller than the sum of its proper divisors (269702565112410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220120212012102 is a wasteful number, since it uses less digits than its factorization.

220120212012102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3865613 (or 3865610 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220120212012102 its reverse (201210212021022), we get a palindrome (421330424033124).

The spelling of 220120212012102 in words is "two hundred twenty trillion, one hundred twenty billion, two hundred twelve million, twelve thousand, one hundred two".

Divisors: 1 2 3 6 9 18 37 74 111 222 333 666 87481 174962 262443 524886 787329 1574658 3236797 3778087 6473594 7556174 9710391 11334261 19420782 22668522 29131173 34002783 58262346 68005566 139789219 279578438 419367657 838735314 1258102971 2516205942 330510828847 661021657694 991532486541 1983064973082 2974597459623 5949194919246 12228900667339 24457801334678 36686702002017 73373404004034 110060106006051 220120212012102