221325472275 has 12 divisors (see below), whose sum is σ = 365924780952. Its totient is φ = 118040251840.

The previous prime is 221325472241. The next prime is 221325472307. The reversal of 221325472275 is 572274523122.

It is not a de Polignac number, because 221325472275 - 2⁸ = 221325472019 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1475503074 + ... + 1475503223.

It is an arithmetic number, because the mean of its divisors is an integer number (30493731746).

Almost surely, 2^221325472275 is an apocalyptic number.

221325472275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

221325472275 is a deficient number, since it is larger than the sum of its proper divisors (144599308677).

221325472275 is a wasteful number, since it uses less digits than its factorization.

221325472275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2951006310 (or 2951006305 counting only the distinct ones).

The product of its digits is 470400, while the sum is 42.

Adding to 221325472275 its reverse (572274523122), we get a palindrome (793599995397).

The spelling of 221325472275 in words is "two hundred twenty-one billion, three hundred twenty-five million, four hundred seventy-two thousand, two hundred seventy-five".