22021300231 has 16 divisors (see below), whose sum is σ = 25528728384. Its totient is φ = 18604594944.

The previous prime is 22021300211. The next prime is 22021300237. The reversal of 22021300231 is 13200312022.

It is a cyclic number.

It is not a de Polignac number, because 22021300231 - 2⁵ = 22021300199 is a prime.

It is a super-2 number, since 2×22021300231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021300237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 810885 + ... + 837601.

It is an arithmetic number, because the mean of its divisors is an integer number (1595545524).

Almost surely, 2^22021300231 is an apocalyptic number.

22021300231 is a deficient number, since it is larger than the sum of its proper divisors (3507428153).

22021300231 is a wasteful number, since it uses less digits than its factorization.

22021300231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28410.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 22021300231 its reverse (13200312022), we get a palindrome (35221612253).

The spelling of 22021300231 in words is "twenty-two billion, twenty-one million, three hundred thousand, two hundred thirty-one".