221627465275 has 48 divisors (see below), whose sum is σ = 283031884800. Its totient is φ = 172096876800.

The previous prime is 221627465249. The next prime is 221627465327. The reversal of 221627465275 is 572564726122.

It is a de Polignac number, because none of the positive numbers 2^k-221627465275 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41047026 + ... + 41052424.

It is an arithmetic number, because the mean of its divisors is an integer number (5896497600).

Almost surely, 2^221627465275 is an apocalyptic number.

221627465275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

221627465275 is a deficient number, since it is larger than the sum of its proper divisors (61404419525).

221627465275 is a wasteful number, since it uses less digits than its factorization.

221627465275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5836 (or 5831 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 49.

The spelling of 221627465275 in words is "two hundred twenty-one billion, six hundred twenty-seven million, four hundred sixty-five thousand, two hundred seventy-five".