221625332 has 12 divisors (see below), whose sum is σ = 404707296. Its totient is φ = 105994680.

The previous prime is 221625323. The next prime is 221625343. The reversal of 221625332 is 233526122.

It is a super-2 number, since 2×221625332² = 98235575568220448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1204394 + ... + 1204577.

It is an arithmetic number, because the mean of its divisors is an integer number (33725608).

Almost surely, 2^221625332 is an apocalyptic number.

It is an amenable number.

221625332 is a deficient number, since it is larger than the sum of its proper divisors (183081964).

221625332 is a wasteful number, since it uses less digits than its factorization.

221625332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2408998 (or 2408996 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 221625332 is about 14887.0860815675. The cubic root of 221625332 is about 605.1640672443.

The spelling of 221625332 in words is "two hundred twenty-one million, six hundred twenty-five thousand, three hundred thirty-two".