977721122 has 16 divisors (see below), whose sum is σ = 1748967552. Its totient is φ = 400804800.

The previous prime is 977721113. The next prime is 977721131. The reversal of 977721122 is 221127779.

977721122 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 (977721113) and next prime (977721131).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1517879 + ... + 1518522.

It is an arithmetic number, because the mean of its divisors is an integer number (109310472).

Almost surely, 2^977721122 is an apocalyptic number.

977721122 is a deficient number, since it is larger than the sum of its proper divisors (771246430).

977721122 is a wasteful number, since it uses less digits than its factorization.

977721122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3036433.

The product of its digits is 24696, while the sum is 38.

The square root of 977721122 is about 31268.5324567687. The cubic root of 977721122 is about 992.5178646058.

The spelling of 977721122 in words is "nine hundred seventy-seven million, seven hundred twenty-one thousand, one hundred twenty-two".