222151532 has 6 divisors (see below), whose sum is σ = 388765188. Its totient is φ = 111075764.

The previous prime is 222151511. The next prime is 222151541. The reversal of 222151532 is 235151222.

It is a junction number, because it is equal to n+sod(n) for n = 222151498 and 222151507.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27768938 + ... + 27768945.

It is an arithmetic number, because the mean of its divisors is an integer number (64794198).

Almost surely, 2^222151532 is an apocalyptic number.

It is an amenable number.

222151532 is a deficient number, since it is larger than the sum of its proper divisors (166613656).

222151532 is a wasteful number, since it uses less digits than its factorization.

222151532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55537887 (or 55537885 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 222151532 is about 14904.7486392760. The cubic root of 222151532 is about 605.6426311367.

The spelling of 222151532 in words is "two hundred twenty-two million, one hundred fifty-one thousand, five hundred thirty-two".