27221060172 has 24 divisors (see below), whose sum is σ = 63519446592. Its totient is φ = 9073166800.

The previous prime is 27221060149. The next prime is 27221060179. The reversal of 27221060172 is 27106012272.

It is a super-2 number, since 2×27221060172² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27221060179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194647 + ... + 303857.

It is an arithmetic number, because the mean of its divisors is an integer number (2646643608).

Almost surely, 2^27221060172 is an apocalyptic number.

It is an amenable number.

27221060172 is an abundant number, since it is smaller than the sum of its proper divisors (36298386420).

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

27221060172 is a wasteful number, since it uses less digits than its factorization.

27221060172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129989 (or 129987 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The spelling of 27221060172 in words is "twenty-seven billion, two hundred twenty-one million, sixty thousand, one hundred seventy-two".