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211111111012002 = 232271045314828357
BaseRepresentation
bin110000000000000100100010…
…110001111010111010100010
31000200111000200022020222012120
4300000010202301322322202
5210132321023404341002
62024555034443405110
762316163063520505
oct6000044261727242
91020430608228176
10211111111012002
11612a27a0569103
121b8168b7b23796
1390a4900117b86
143a1bb91b4713c
15196174014ecbc
hexc00122c7aea2

211111111012002 has 32 divisors (see below), whose sum is σ = 424122830799552. Its totient is φ = 70053661564224.

The previous prime is 211111111012001. The next prime is 211111111012049. The reversal of 211111111012002 is 200210111111112.

It is not an unprimeable number, because it can be changed into a prime (211111111012001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6822808 + ... + 21651164.

It is an arithmetic number, because the mean of its divisors is an integer number (13253838462486).

Almost surely, 2211111111012002 is an apocalyptic number.

211111111012002 is an abundant number, since it is smaller than the sum of its proper divisors (213011719787550).

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

211111111012002 is a wasteful number, since it uses less digits than its factorization.

211111111012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14839042.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 211111111012002 its reverse (200210111111112), we get a palindrome (411321222123114).

The spelling of 211111111012002 in words is "two hundred eleven trillion, one hundred eleven billion, one hundred eleven million, twelve thousand, two".

Divisors: 1 2 3 6 227 454 681 1362 10453 20906 31359 62718 2372831 4745662 7118493 14236986 14828357 29656714 44485071 88970142 3366037039 6732074078 10098111117 20196222234 155000815721 310001631442 465002447163 930004894326 35185185168667 70370370337334 105555555506001 211111111012002