21132020321322 has 32 divisors (see below), whose sum is σ = 43794354785280. Its totient is φ = 6793101609840.

The previous prime is 21132020321257. The next prime is 21132020321323. The reversal of 21132020321322 is 22312302023112.

It is a junction number, because it is equal to n+sod(n) for n = 21132020321292 and 21132020321301.

It is not an unprimeable number, because it can be changed into a prime (21132020321323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 518378704 + ... + 518419467.

It is an arithmetic number, because the mean of its divisors is an integer number (1368573587040).

Almost surely, 2^{21132020321322} is an apocalyptic number.

21132020321322 is an abundant number, since it is smaller than the sum of its proper divisors (22662334463958).

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

21132020321322 is a wasteful number, since it uses less digits than its factorization.

21132020321322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036798298.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 21132020321322 its reverse (22312302023112), we get a palindrome (43444322344434).

The spelling of 21132020321322 in words is "twenty-one trillion, one hundred thirty-two billion, twenty million, three hundred twenty-one thousand, three hundred twenty-two".