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220202202101020 = 22587712554287463
BaseRepresentation
bin110010000100010111010010…
…000010001111010100011100
31001212200010101002000120102121
4302010113102002033110130
5212330243102214213040
62100155254540232324
764245040563003136
oct6204272202172434
91055603332016377
10220202202101020
1164188258476687
12208447b3b3b6a4
1395b3c94b7a829
143c53bb45ca056
151a6ce7087dc4a
hexc845d208f51c

220202202101020 has 24 divisors (see below), whose sum is σ = 462951904522464. Its totient is φ = 87980446533696.

The previous prime is 220202202100873. The next prime is 220202202101027. The reversal of 220202202101020 is 20101202202022.

It is a junction number, because it is equal to n+sod(n) for n = 220202202100985 and 220202202101003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220202202101027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6277126192 + ... + 6277161271.

It is an arithmetic number, because the mean of its divisors is an integer number (19289662688436).

Almost surely, 2220202202101020 is an apocalyptic number.

220202202101020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220202202101020 is an abundant number, since it is smaller than the sum of its proper divisors (242749702421444).

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

220202202101020 is a wasteful number, since it uses less digits than its factorization.

220202202101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12554288349 (or 12554288347 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 220202202101020 its reverse (20101202202022), we get a palindrome (240303404303042).

The spelling of 220202202101020 in words is "two hundred twenty trillion, two hundred two billion, two hundred two million, one hundred one thousand, twenty".

Divisors: 1 2 4 5 10 20 877 1754 3508 4385 8770 17540 12554287463 25108574926 50217149852 62771437315 125542874630 251085749260 11010110105051 22020220210102 44040440420204 55050550525255 110101101050510 220202202101020