100122209977 has 2 divisors, whose sum is σ = 100122209978. Its totient is φ = 100122209976.

The previous prime is 100122209969. The next prime is 100122209983. The reversal of 100122209977 is 779902221001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78500272041 + 21621937936 = 280179^2 + 147044^2 .

It is a cyclic number.

It is not a de Polignac number, because 100122209977 - 2³ = 100122209969 is a prime.

It is not a weakly prime, because it can be changed into another prime (100122209947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50061104988 + 50061104989.

It is an arithmetic number, because the mean of its divisors is an integer number (50061104989).

Almost surely, 2^100122209977 is an apocalyptic number.

It is an amenable number.

100122209977 is a deficient number, since it is larger than the sum of its proper divisors (1).

100122209977 is an equidigital number, since it uses as much as digits as its factorization.

100122209977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 40.

The spelling of 100122209977 in words is "one hundred billion, one hundred twenty-two million, two hundred nine thousand, nine hundred seventy-seven".