122111117087 has 2 divisors, whose sum is σ = 122111117088. Its totient is φ = 122111117086.

The previous prime is 122111117071. The next prime is 122111117123. The reversal of 122111117087 is 780711111221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122111117087 - 2⁴ = 122111117071 is a prime.

It is a super-2 number, since 2×122111117087² (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 (122111117027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61055558543 + 61055558544.

It is an arithmetic number, because the mean of its divisors is an integer number (61055558544).

Almost surely, 2^122111117087 is an apocalyptic number.

122111117087 is a deficient number, since it is larger than the sum of its proper divisors (1).

122111117087 is an equidigital number, since it uses as much as digits as its factorization.

122111117087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1568, while the sum is 32.

The spelling of 122111117087 in words is "one hundred twenty-two billion, one hundred eleven million, one hundred seventeen thousand, eighty-seven".