221412232 has 16 divisors (see below), whose sum is σ = 417444300. Its totient is φ = 110093760.

The previous prime is 221412223. The next prime is 221412241. The reversal of 221412232 is 232214122.

221412232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (221412223) and next prime (221412241).

It can be written as a sum of positive squares in 2 ways, for example, as 123520996 + 97891236 = 11114^2 + 9894^2 .

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, 75007 + ... + 77902.

Almost surely, 2^221412232 is an apocalyptic number.

It is an amenable number.

221412232 is a deficient number, since it is larger than the sum of its proper divisors (196032068).

221412232 is a wasteful number, since it uses less digits than its factorization.

221412232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153096 (or 153092 counting only the distinct ones).

The product of its digits is 384, while the sum is 19.

The square root of 221412232 is about 14879.9271503593. The cubic root of 221412232 is about 604.9700433679.

Adding to 221412232 its reverse (232214122), we get a palindrome (453626354).

The spelling of 221412232 in words is "two hundred twenty-one million, four hundred twelve thousand, two hundred thirty-two".