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212021002202202 = 232231792861050417
BaseRepresentation
bin110000001101010011111100…
…100001010110110001011010
31000210201000021012001120120200
4300031103330201112301122
5210242223003030432302
62030533034225403030
762442004041156324
oct6015237441266132
91023630235046520
10212021002202202
1161613669404556
121b943110799476
13913c657b84a3b
143a4dc2aa4a614
15197a245be481c
hexc0d4fc856c5a

212021002202202 has 48 divisors (see below), whose sum is σ = 482029774424640. Its totient is φ = 67223240574336.

The previous prime is 212021002202197. The next prime is 212021002202281. The reversal of 212021002202202 is 202202200120212.

212021002202202 is a `hidden beast` number, since 2 + 12 + 0 + 210 + 0 + 220 + 220 + 2 = 666.

It is a super-2 number, since 2×2120210022022022 (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 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, 1430451103 + ... + 1430599314.

It is an arithmetic number, because the mean of its divisors is an integer number (10042286967180).

Almost surely, 2212021002202202 is an apocalyptic number.

212021002202202 is an abundant number, since it is smaller than the sum of its proper divisors (270008772222438).

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

212021002202202 is a wasteful number, since it uses less digits than its factorization.

212021002202202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2861050627 (or 2861050624 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 212021002202202 its reverse (202202200120212), we get a palindrome (414223202322414).

The spelling of 212021002202202 in words is "two hundred twelve trillion, twenty-one billion, two million, two hundred two thousand, two hundred two".

Divisors: 1 2 3 6 9 18 23 46 69 138 179 207 358 414 537 1074 1611 3222 4117 8234 12351 24702 37053 74106 2861050417 5722100834 8583151251 17166302502 25749453753 51498907506 65804159591 131608319182 197412478773 394824957546 512128024643 592237436319 1024256049286 1184474872638 1536384073929 3072768147858 4609152221787 9218304443574 11778944566789 23557889133578 35336833700367 70673667400734 106010501101101 212021002202202