22123230111021 has 64 divisors (see below), whose sum is σ = 34072486963200. Its totient is φ = 12653304378624.

The previous prime is 22123230111001. The next prime is 22123230111077. The reversal of 22123230111021 is 12011103232122.

It is not a de Polignac number, because 22123230111021 - 2³⁰ = 22122156369197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22123230111001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 738435240 + ... + 738465198.

It is an arithmetic number, because the mean of its divisors is an integer number (532382608800).

Almost surely, 2^{22123230111021} is an apocalyptic number.

It is an amenable number.

22123230111021 is a deficient number, since it is larger than the sum of its proper divisors (11949256852179).

22123230111021 is a wasteful number, since it uses less digits than its factorization.

22123230111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48850.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 22123230111021 its reverse (12011103232122), we get a palindrome (34134333343143).

The spelling of 22123230111021 in words is "twenty-two trillion, one hundred twenty-three billion, two hundred thirty million, one hundred eleven thousand, twenty-one".