220962235538 has 90 divisors (see below), whose sum is σ = 379355416965. Its totient is φ = 96525184800.

The previous prime is 220962235511. The next prime is 220962235577. The reversal of 220962235538 is 835532269022.

It can be written as a sum of positive squares in 2 ways, for example, as 157802001049 + 63160234489 = 397243^2 + 251317^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=332387.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220962235492 and 220962235501.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 3297943781 + ... + 3297943847.

Almost surely, 2^220962235538 is an apocalyptic number.

220962235538 is a deficient number, since it is larger than the sum of its proper divisors (158393181427).

220962235538 is an frugal number, since it uses more digits than its factorization.

220962235538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 220962235538 in words is "two hundred twenty billion, nine hundred sixty-two million, two hundred thirty-five thousand, five hundred thirty-eight".