122369811887 has 2 divisors, whose sum is σ = 122369811888. Its totient is φ = 122369811886.

The previous prime is 122369811877. The next prime is 122369811913. The reversal of 122369811887 is 788118963221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122369811887 - 2¹⁰ = 122369810863 is a prime.

It is a super-2 number, since 2×122369811887² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122369811877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61184905943 + 61184905944.

It is an arithmetic number, because the mean of its divisors is an integer number (61184905944).

Almost surely, 2^122369811887 is an apocalyptic number.

122369811887 is a deficient number, since it is larger than the sum of its proper divisors (1).

122369811887 is an equidigital number, since it uses as much as digits as its factorization.

122369811887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2322432, while the sum is 56.

The spelling of 122369811887 in words is "one hundred twenty-two billion, three hundred sixty-nine million, eight hundred eleven thousand, eight hundred eighty-seven".