201979222 has 4 divisors (see below), whose sum is σ = 302968836. Its totient is φ = 100989610.

The previous prime is 201979207. The next prime is 201979231. The reversal of 201979222 is 222979102.

201979222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×201979222² = 81591212239450568, 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 as a sum of consecutive naturals, namely, 50494804 + ... + 50494807.

It is an arithmetic number, because the mean of its divisors is an integer number (75742209).

Almost surely, 2^201979222 is an apocalyptic number.

201979222 is a deficient number, since it is larger than the sum of its proper divisors (100989614).

201979222 is a wasteful number, since it uses less digits than its factorization.

201979222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100989613.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 201979222 is about 14211.9394172646. The cubic root of 201979222 is about 586.7263123040.

The spelling of 201979222 in words is "two hundred one million, nine hundred seventy-nine thousand, two hundred twenty-two".