21320012033022 has 32 divisors (see below), whose sum is σ = 44498960898048. Its totient is φ = 6796917632736.

The previous prime is 21320012032997. The next prime is 21320012033161. The reversal of 21320012033022 is 22033021002312.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 21320012033022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7492513 + ... + 9938700.

It is an arithmetic number, because the mean of its divisors is an integer number (1390592528064).

Almost surely, 2^{21320012033022} is an apocalyptic number.

21320012033022 is an abundant number, since it is smaller than the sum of its proper divisors (23178948865026).

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

21320012033022 is a wasteful number, since it uses less digits than its factorization.

21320012033022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17440104.

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

Adding to 21320012033022 its reverse (22033021002312), we get a palindrome (43353033035334).

The spelling of 21320012033022 in words is "twenty-one trillion, three hundred twenty billion, twelve million, thirty-three thousand, twenty-two".