21303222310120 has 64 divisors (see below), whose sum is σ = 48557080970640. Its totient is φ = 8410833715200.

The previous prime is 21303222310063. The next prime is 21303222310133. The reversal of 21303222310120 is 2101322230312.

It can be written as a sum of positive squares in 8 ways, for example, as 1141559759844 + 20161662550276 = 1068438^2 + 4490174^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21303222310091 and 21303222310100.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8688901 + ... + 10867540.

Almost surely, 2^{21303222310120} is an apocalyptic number.

21303222310120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21303222310120 is an abundant number, since it is smaller than the sum of its proper divisors (27253858660520).

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

21303222310120 is a wasteful number, since it uses less digits than its factorization.

21303222310120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19556806 (or 19556802 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21303222310120 its reverse (2101322230312), we get a palindrome (23404544540432).

The spelling of 21303222310120 in words is "twenty-one trillion, three hundred three billion, two hundred twenty-two million, three hundred ten thousand, one hundred twenty".