22111000110021 has 16 divisors (see below), whose sum is σ = 29837275776000. Its totient is φ = 14562704467440.

The previous prime is 22111000109983. The next prime is 22111000110107. The reversal of 22111000110021 is 12001100011122.

It is not a de Polignac number, because 22111000110021 - 2¹³ = 22111000101829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22111000109979 and 22111000110006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111000111021) 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, 9062980 + ... + 11240978.

It is an arithmetic number, because the mean of its divisors is an integer number (1864829736000).

Almost surely, 2^{22111000110021} is an apocalyptic number.

It is an amenable number.

22111000110021 is a deficient number, since it is larger than the sum of its proper divisors (7726275665979).

22111000110021 is a wasteful number, since it uses less digits than its factorization.

22111000110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2218856.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 22111000110021 its reverse (12001100011122), we get a palindrome (34112100121143).

The spelling of 22111000110021 in words is "twenty-two trillion, one hundred eleven billion, one hundred ten thousand, twenty-one".