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2002101222212 = 2271313214163723
BaseRepresentation
bin11101001000100110100…
…010000011101101000100
321002101202212122222221222
4131020212202003231010
5230300300403102322
64131430321255512
7264434635412240
oct35104642035504
97071685588858
102002101222212
117020a4a44173
1228402b794598
13116a4998c620
146cc8b977420
153712c6d6e42
hex1d226883b44

2002101222212 has 48 divisors (see below), whose sum is σ = 4315483412352. Its totient is φ = 791440277760.

The previous prime is 2002101222179. The next prime is 2002101222217. The reversal of 2002101222212 is 2122221012002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2002101222217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1601018 + ... + 2562705.

It is an arithmetic number, because the mean of its divisors is an integer number (89905904424).

Almost surely, 22002101222212 is an apocalyptic number.

It is an amenable number.

2002101222212 is an abundant number, since it is smaller than the sum of its proper divisors (2313382190140).

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

2002101222212 is a wasteful number, since it uses less digits than its factorization.

2002101222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4165068 (or 4165066 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2002101222212 its reverse (2122221012002), we get a palindrome (4124322234214).

The spelling of 2002101222212 in words is "two trillion, two billion, one hundred one million, two hundred twenty-two thousand, two hundred twelve".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 364 1321 2642 5284 9247 17173 18494 34346 36988 68692 120211 240422 480844 4163723 8327446 16654892 29146061 54128399 58292122 108256798 116584244 216513596 378898793 757797586 1515595172 5500278083 11000556166 22001112332 38501946581 71503615079 77003893162 143007230158 154007786324 286014460316 500525305553 1001050611106 2002101222212