21423213133322 has 128 divisors (see below), whose sum is σ = 43712581022208. Its totient is φ = 7603974144000.

The previous prime is 21423213133319. The next prime is 21423213133339. The reversal of 21423213133322 is 22333131232412.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 63119978 + ... + 63458474.

It is an arithmetic number, because the mean of its divisors is an integer number (341504539236).

Almost surely, 2^{21423213133322} is an apocalyptic number.

21423213133322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21423213133322 is an abundant number, since it is smaller than the sum of its proper divisors (22289367888886).

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

21423213133322 is a wasteful number, since it uses less digits than its factorization.

21423213133322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338944.

The product of its digits is 31104, while the sum is 32.

Adding to 21423213133322 its reverse (22333131232412), we get a palindrome (43756344365734).

The spelling of 21423213133322 in words is "twenty-one trillion, four hundred twenty-three billion, two hundred thirteen million, one hundred thirty-three thousand, three hundred twenty-two".