22110111022021 has 32 divisors (see below), whose sum is σ = 25000500960000. Its totient is φ = 19369167336960.

The previous prime is 22110111022001. The next prime is 22110111022073. The reversal of 22110111022021 is 12022011101122.

It is a cyclic number.

It is not a de Polignac number, because 22110111022021 - 2²⁵ = 22110077467589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22110111021986 and 22110111022004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22110111022001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1421041840 + ... + 1421057398.

It is an arithmetic number, because the mean of its divisors is an integer number (781265655000).

Almost surely, 2^{22110111022021} is an apocalyptic number.

It is an amenable number.

22110111022021 is a deficient number, since it is larger than the sum of its proper divisors (2890389937979).

22110111022021 is a wasteful number, since it uses less digits than its factorization.

22110111022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23997.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22110111022021 its reverse (12022011101122), we get a palindrome (34132122123143).

The spelling of 22110111022021 in words is "twenty-two trillion, one hundred ten billion, one hundred eleven million, twenty-two thousand, twenty-one".