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2222202031091 = 7280395641381
BaseRepresentation
bin100000010101100101100…
…100000000101111110011
321212102220002011120111022
4200111211210000233303
5242402032204443331
64420510541410055
7316356144414500
oct40254544005763
97772802146438
102222202031091
11787481128609
122ba816b6992b
13131725521143
14797ab4a24a7
153cc1068b67b
hex20565900bf3

2222202031091 has 12 divisors (see below), whose sum is σ = 2585332542960. Its totient is φ = 1904507322480.

The previous prime is 2222202031079. The next prime is 2222202031117. The reversal of 2222202031091 is 1901302022222.

It is not a de Polignac number, because 2222202031091 - 234 = 2205022161907 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2222202031091.

It is not an unprimeable number, because it can be changed into a prime (2222202031691) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2426780 + ... + 3214601.

It is an arithmetic number, because the mean of its divisors is an integer number (215444378580).

Almost surely, 22222202031091 is an apocalyptic number.

2222202031091 is a deficient number, since it is larger than the sum of its proper divisors (363130511869).

2222202031091 is an equidigital number, since it uses as much as digits as its factorization.

2222202031091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5649434 (or 5649427 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 2222202031091 in words is "two trillion, two hundred twenty-two billion, two hundred two million, thirty-one thousand, ninety-one".

Divisors: 1 7 49 8039 56273 393911 5641381 39489667 276427669 45351061859 317457433013 2222202031091