12220010977 has 2 divisors, whose sum is σ = 12220010978. Its totient is φ = 12220010976.

The previous prime is 12220010953. The next prime is 12220011007. The reversal of 12220010977 is 77901002221.

It is a happy number.

12220010977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12202295296 + 17715681 = 110464^2 + 4209^2 .

It is a cyclic number.

It is not a de Polignac number, because 12220010977 - 2²⁷ = 12085793249 is a prime.

It is a super-4 number, since 4×12220010977⁴ (a number of 41 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (12220010917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110005488 + 6110005489.

It is an arithmetic number, because the mean of its divisors is an integer number (6110005489).

Almost surely, 2^12220010977 is an apocalyptic number.

It is an amenable number.

12220010977 is a deficient number, since it is larger than the sum of its proper divisors (1).

12220010977 is an equidigital number, since it uses as much as digits as its factorization.

12220010977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 31.

The spelling of 12220010977 in words is "twelve billion, two hundred twenty million, ten thousand, nine hundred seventy-seven".