2111222101122 has 24 divisors (see below), whose sum is σ = 4589022971520. Its totient is φ = 701477866680.

The previous prime is 2111222101111. The next prime is 2111222101123. The reversal of 2111222101122 is 2211012221112.

2111222101122 is a `hidden beast` number, since 211 + 122 + 210 + 1 + 122 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2111222101095 and 2111222101104.

It is not an unprimeable number, because it can be changed into a prime (2111222101123) 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, 188563722 + ... + 188574917.

It is an arithmetic number, because the mean of its divisors is an integer number (191209290480).

Almost surely, 2^{2111222101122} is an apocalyptic number.

2111222101122 is an abundant number, since it is smaller than the sum of its proper divisors (2477800870398).

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

2111222101122 is a wasteful number, since it uses less digits than its factorization.

2111222101122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377138958 (or 377138955 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2111222101122 its reverse (2211012221112), we get a palindrome (4322234322234).

The spelling of 2111222101122 in words is "two trillion, one hundred eleven billion, two hundred twenty-two million, one hundred one thousand, one hundred twenty-two".