2111111200122 has 32 divisors (see below), whose sum is σ = 4248481879872. Its totient is φ = 699330705024.

The previous prime is 2111111200117. The next prime is 2111111200147. The reversal of 2111111200122 is 2210021111112.

It is a happy number.

It is a super-2 number, since 2×2111111200122² (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, 1941573 + ... + 2826999.

It is an arithmetic number, because the mean of its divisors is an integer number (132765058746).

Almost surely, 2^{2111111200122} is an apocalyptic number.

2111111200122 is an abundant number, since it is smaller than the sum of its proper divisors (2137370679750).

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

2111111200122 is a wasteful number, since it uses less digits than its factorization.

2111111200122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887902.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2111111200122 its reverse (2210021111112), we get a palindrome (4321132311234).

The spelling of 2111111200122 in words is "two trillion, one hundred eleven billion, one hundred eleven million, two hundred thousand, one hundred twenty-two".