22031103177977 has 2 divisors, whose sum is σ = 22031103177978. Its totient is φ = 22031103177976.

The previous prime is 22031103177973. The next prime is 22031103178013. The reversal of 22031103177977 is 77977130113022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11288598742201 + 10742504435776 = 3359851^2 + 3277576^2 .

It is a cyclic number.

It is not a de Polignac number, because 22031103177977 - 2² = 22031103177973 is a prime.

It is not a weakly prime, because it can be changed into another prime (22031103177973) 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, 11015551588988 + 11015551588989.

It is an arithmetic number, because the mean of its divisors is an integer number (11015551588989).

Almost surely, 2^{22031103177977} is an apocalyptic number.

It is an amenable number.

22031103177977 is a deficient number, since it is larger than the sum of its proper divisors (1).

22031103177977 is an equidigital number, since it uses as much as digits as its factorization.

22031103177977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777924, while the sum is 50.

The spelling of 22031103177977 in words is "twenty-two trillion, thirty-one billion, one hundred three million, one hundred seventy-seven thousand, nine hundred seventy-seven".