22221100102121 has 4 divisors (see below), whose sum is σ = 22337440940544. Its totient is φ = 22104759263700.

The previous prime is 22221100101997. The next prime is 22221100102133. The reversal of 22221100102121 is 12120100112222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22221100102121 - 2³⁴ = 22203920232937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22221100102121.

It is not an unprimeable number, because it can be changed into a prime (22221100102171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58170418925 + ... + 58170419306.

It is an arithmetic number, because the mean of its divisors is an integer number (5584360235136).

Almost surely, 2^{22221100102121} is an apocalyptic number.

It is an amenable number.

22221100102121 is a deficient number, since it is larger than the sum of its proper divisors (116340838423).

22221100102121 is a wasteful number, since it uses less digits than its factorization.

22221100102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116340838422.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22221100102121 its reverse (12120100112222), we get a palindrome (34341200214343).

The spelling of 22221100102121 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred million, one hundred two thousand, one hundred twenty-one".