2100111202122 has 32 divisors (see below), whose sum is σ = 4555764912384. Its totient is φ = 642788697600.

The previous prime is 2100111202093. The next prime is 2100111202159. The reversal of 2100111202122 is 2212021110012.

It is a super-2 number, since 2×2100111202122² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251085154 + ... + 251093517.

It is an arithmetic number, because the mean of its divisors is an integer number (142367653512).

Almost surely, 2^{2100111202122} is an apocalyptic number.

2100111202122 is an abundant number, since it is smaller than the sum of its proper divisors (2455653710262).

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

2100111202122 is a wasteful number, since it uses less digits than its factorization.

2100111202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502178734.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2100111202122 its reverse (2212021110012), we get a palindrome (4312132312134).

The spelling of 2100111202122 in words is "two trillion, one hundred billion, one hundred eleven million, two hundred two thousand, one hundred twenty-two".