21023330023212 has 24 divisors (see below), whose sum is σ = 53513930968512. Its totient is φ = 6370706067600.

The previous prime is 21023330023153. The next prime is 21023330023243. The reversal of 21023330023212 is 21232003332012.

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, 79633825714 + ... + 79633825977.

It is an arithmetic number, because the mean of its divisors is an integer number (2229747123688).

Almost surely, 2^{21023330023212} is an apocalyptic number.

21023330023212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21023330023212 is an abundant number, since it is smaller than the sum of its proper divisors (32490600945300).

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

21023330023212 is a wasteful number, since it uses less digits than its factorization.

21023330023212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159267651709 (or 159267651707 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 21023330023212 its reverse (21232003332012), we get a palindrome (42255333355224).

The spelling of 21023330023212 in words is "twenty-one trillion, twenty-three billion, three hundred thirty million, twenty-three thousand, two hundred twelve".