22111210011021 has 16 divisors (see below), whose sum is σ = 31334517270144. Its totient is φ = 13820948678144.

The previous prime is 22111210011017. The next prime is 22111210011047. The reversal of 22111210011021 is 12011001211122.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22111210011021 - 2² = 22111210011017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111210011091) 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, 824232096 + ... + 824258921.

It is an arithmetic number, because the mean of its divisors is an integer number (1958407329384).

Almost surely, 2^{22111210011021} is an apocalyptic number.

It is an amenable number.

22111210011021 is a deficient number, since it is larger than the sum of its proper divisors (9223307259123).

22111210011021 is a wasteful number, since it uses less digits than its factorization.

22111210011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648491300.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 22111210011021 its reverse (12011001211122), we get a palindrome (34122211222143).

The spelling of 22111210011021 in words is "twenty-two trillion, one hundred eleven billion, two hundred ten million, eleven thousand, twenty-one".