220572110172 has 24 divisors (see below), whose sum is σ = 514697074192. Its totient is φ = 73519920000.

The previous prime is 220572110167. The next prime is 220572110243. The reversal of 220572110172 is 271011275022.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287329 + ... + 723672.

Almost surely, 2^220572110172 is an apocalyptic number.

It is an amenable number.

220572110172 is an abundant number, since it is smaller than the sum of its proper divisors (294124964020).

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

220572110172 is a wasteful number, since it uses less digits than its factorization.

220572110172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029189 (or 1029187 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 30.

Adding to 220572110172 its reverse (271011275022), we get a palindrome (491583385194).

The spelling of 220572110172 in words is "two hundred twenty billion, five hundred seventy-two million, one hundred ten thousand, one hundred seventy-two".