921222032 has 20 divisors (see below), whose sum is σ = 1794218496. Its totient is φ = 458197920.

The previous prime is 921222007. The next prime is 921222073. The reversal of 921222032 is 230222129.

It is a junction number, because it is equal to n+sod(n) for n = 921221989 and 921222007.

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, 147668 + ... + 153779.

Almost surely, 2^921222032 is an apocalyptic number.

It is an amenable number.

921222032 is a deficient number, since it is larger than the sum of its proper divisors (872996464).

921222032 is a wasteful number, since it uses less digits than its factorization.

921222032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301646 (or 301640 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 921222032 is about 30351.6396921155. The cubic root of 921222032 is about 973.0192641952.

The spelling of 921222032 in words is "nine hundred twenty-one million, two hundred twenty-two thousand, thirty-two".