122021112099977 has 2 divisors, whose sum is σ = 122021112099978. Its totient is φ = 122021112099976.

The previous prime is 122021112099863. The next prime is 122021112100001. The reversal of 122021112099977 is 779990211120221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98280674422921 + 23740437677056 = 9913661^2 + 4872416^2 .

It is a cyclic number.

It is not a de Polignac number, because 122021112099977 - 2¹² = 122021112095881 is a prime.

It is not a weakly prime, because it can be changed into another prime (122021112095977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61010556049988 + 61010556049989.

It is an arithmetic number, because the mean of its divisors is an integer number (61010556049989).

Almost surely, 2^{122021112099977} is an apocalyptic number.

It is an amenable number.

122021112099977 is a deficient number, since it is larger than the sum of its proper divisors (1).

122021112099977 is an equidigital number, since it uses as much as digits as its factorization.

122021112099977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 571536, while the sum is 53.

The spelling of 122021112099977 in words is "one hundred twenty-two trillion, twenty-one billion, one hundred twelve million, ninety-nine thousand, nine hundred seventy-seven".