2111122121122 has 32 divisors (see below), whose sum is σ = 3759552486144. Its totient is φ = 870266745600.

The previous prime is 2111122121089. The next prime is 2111122121149. The reversal of 2111122121122 is 2211212211112.

It is a happy number.

It is a super-2 number, since 2×2111122121122² (a number of 25 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 2111122121122.

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, 25860043 + ... + 25941550.

It is an arithmetic number, because the mean of its divisors is an integer number (117486015192).

Almost surely, 2^{2111122121122} is an apocalyptic number.

2111122121122 is a deficient number, since it is larger than the sum of its proper divisors (1648430365022).

2111122121122 is a wasteful number, since it uses less digits than its factorization.

2111122121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51801714.

The product of its digits is 64, while the sum is 19.

Adding to 2111122121122 its reverse (2211212211112), we get a palindrome (4322334332234).

The spelling of 2111122121122 in words is "two trillion, one hundred eleven billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred twenty-two".