80221972 has 12 divisors (see below), whose sum is σ = 142166080. Its totient is φ = 39603096.

The previous prime is 80221969. The next prime is 80221979. The reversal of 80221972 is 27912208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80221979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126618 + ... + 127249.

Almost surely, 2^80221972 is an apocalyptic number.

It is an amenable number.

80221972 is a deficient number, since it is larger than the sum of its proper divisors (61944108).

80221972 is a wasteful number, since it uses less digits than its factorization.

80221972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253950 (or 253948 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 80221972 is about 8956.6719265584. The cubic root of 80221972 is about 431.2850901364.

The spelling of 80221972 in words is "eighty million, two hundred twenty-one thousand, nine hundred seventy-two".