221253571227 has 64 divisors (see below), whose sum is σ = 328201606656. Its totient is φ = 131719633920.

The previous prime is 221253571223. The next prime is 221253571241. The reversal of 221253571227 is 722175352122.

It is not a de Polignac number, because 221253571227 - 2² = 221253571223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (221253571223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 140835352 + ... + 140836922.

It is an arithmetic number, because the mean of its divisors is an integer number (5128150104).

Almost surely, 2^221253571227 is an apocalyptic number.

221253571227 is a deficient number, since it is larger than the sum of its proper divisors (106948035429).

221253571227 is a wasteful number, since it uses less digits than its factorization.

221253571227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380.

The product of its digits is 117600, while the sum is 39.

The spelling of 221253571227 in words is "two hundred twenty-one billion, two hundred fifty-three million, five hundred seventy-one thousand, two hundred twenty-seven".