22222000100121 has 16 divisors (see below), whose sum is σ = 30369146258304. Its totient is φ = 14448107907584.

The previous prime is 22222000100101. The next prime is 22222000100147. The reversal of 22222000100121 is 12100100022222.

It is a cyclic number.

It is not a de Polignac number, because 22222000100121 - 2²⁵ = 22221966545689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22222000100121.

It is not an unprimeable number, because it can be changed into a prime (22222000100101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 418419576 + ... + 418472681.

It is an arithmetic number, because the mean of its divisors is an integer number (1898071641144).

Almost surely, 2^{22222000100121} is an apocalyptic number.

It is an amenable number.

22222000100121 is a deficient number, since it is larger than the sum of its proper divisors (8147146158183).

22222000100121 is a wasteful number, since it uses less digits than its factorization.

22222000100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836892480.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22222000100121 its reverse (12100100022222), we get a palindrome (34322100122343).

The spelling of 22222000100121 in words is "twenty-two trillion, two hundred twenty-two billion, one hundred thousand, one hundred twenty-one".