22234140021 has 16 divisors (see below), whose sum is σ = 30006111744. Its totient is φ = 14643554544.

The previous prime is 22234140017. The next prime is 22234140077. The reversal of 22234140021 is 12004143222.

It is not a de Polignac number, because 22234140021 - 2² = 22234140017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22234140021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22234140001) 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, 54471 + ... + 217796.

It is an arithmetic number, because the mean of its divisors is an integer number (1875381984).

Almost surely, 2^22234140021 is an apocalyptic number.

It is an amenable number.

22234140021 is a deficient number, since it is larger than the sum of its proper divisors (7771971723).

22234140021 is a wasteful number, since it uses less digits than its factorization.

22234140021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272600.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 22234140021 its reverse (12004143222), we get a palindrome (34238283243).

The spelling of 22234140021 in words is "twenty-two billion, two hundred thirty-four million, one hundred forty thousand, twenty-one".