21312300230022 has 16 divisors (see below), whose sum is σ = 42628770063360. Its totient is φ = 7103405142792.

The previous prime is 21312300229931. The next prime is 21312300230063. The reversal of 21312300230022 is 22003200321312.

It is a happy number.

It is a super-2 number, since 2×21312300230022² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173667022 + ... + 173789697.

It is an arithmetic number, because the mean of its divisors is an integer number (2664298128960).

Almost surely, 2^{21312300230022} is an apocalyptic number.

21312300230022 is an abundant number, since it is smaller than the sum of its proper divisors (21316469833338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21312300230022 is a wasteful number, since it uses less digits than its factorization.

21312300230022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347466947.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21312300230022 its reverse (22003200321312), we get a palindrome (43315500551334).

The spelling of 21312300230022 in words is "twenty-one trillion, three hundred twelve billion, three hundred million, two hundred thirty thousand, twenty-two".