72215251227 has 48 divisors (see below), whose sum is σ = 119881944000. Its totient is φ = 41034719232.

The previous prime is 72215251217. The next prime is 72215251237.

72215251227 is a `hidden beast` number, since 7 + 2 + 2 + 1 + 525 + 122 + 7 = 666.

72215251227 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (72215251217) and next prime (72215251237).

It is not a de Polignac number, because 72215251227 - 2⁴ = 72215251211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72215251191 and 72215251200.

It is not an unprimeable number, because it can be changed into a prime (72215251217) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9639099 + ... + 9646587.

It is an arithmetic number, because the mean of its divisors is an integer number (2497540500).

Almost surely, 2^72215251227 is an apocalyptic number.

72215251227 is a deficient number, since it is larger than the sum of its proper divisors (47666692773).

72215251227 is a wasteful number, since it uses less digits than its factorization.

72215251227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8340 (or 8337 counting only the distinct ones).

The product of its digits is 39200, while the sum is 36.

The spelling of 72215251227 in words is "seventy-two billion, two hundred fifteen million, two hundred fifty-one thousand, two hundred twenty-seven".