22112221010121 has 40 divisors (see below), whose sum is σ = 36045799045344. Its totient is φ = 13397229679680.

The previous prime is 22112221010093. The next prime is 22112221010129. The reversal of 22112221010121 is 12101012221122.

22112221010121 is a `hidden beast` number, since 221 + 1 + 222 + 101 + 0 + 121 = 666.

It is not a de Polignac number, because 22112221010121 - 2⁶ = 22112221010057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22112221010094 and 22112221010103.

It is not an unprimeable number, because it can be changed into a prime (22112221010129) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 907855 + ... + 6711828.

Almost surely, 2^{22112221010121} is an apocalyptic number.

It is an amenable number.

22112221010121 is a deficient number, since it is larger than the sum of its proper divisors (13933578035223).

22112221010121 is a wasteful number, since it uses less digits than its factorization.

22112221010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7622963 (or 7622954 counting only the distinct ones).

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

Adding to 22112221010121 its reverse (12101012221122), we get a palindrome (34213233231243).

The spelling of 22112221010121 in words is "twenty-two trillion, one hundred twelve billion, two hundred twenty-one million, ten thousand, one hundred twenty-one".