21023312202322 has 16 divisors (see below), whose sum is σ = 33847363243512. Its totient is φ = 9757798410240.

The previous prime is 21023312202283. The next prime is 21023312202329. The reversal of 21023312202322 is 22320221332012.

It can be written as a sum of positive squares in 4 ways, for example, as 18870257808081 + 2153054394241 = 4343991^2 + 1467329^2 .

It is a super-2 number, since 2×21023312202322² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21023312202329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4235153079 + ... + 4235158042.

Almost surely, 2^{21023312202322} is an apocalyptic number.

21023312202322 is a deficient number, since it is larger than the sum of its proper divisors (12824051041190).

21023312202322 is a wasteful number, since it uses less digits than its factorization.

21023312202322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8470311213.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 21023312202322 its reverse (22320221332012), we get a palindrome (43343533534334).

The spelling of 21023312202322 in words is "twenty-one trillion, twenty-three billion, three hundred twelve million, two hundred two thousand, three hundred twenty-two".