122111934487 has 2 divisors, whose sum is σ = 122111934488. Its totient is φ = 122111934486.

The previous prime is 122111934457. The next prime is 122111934523. The reversal of 122111934487 is 784439111221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122111934487 - 2¹⁵ = 122111901719 is a prime.

It is a super-2 number, since 2×122111934487² (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 (122111934407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61055967243 + 61055967244.

It is an arithmetic number, because the mean of its divisors is an integer number (61055967244).

Almost surely, 2^122111934487 is an apocalyptic number.

122111934487 is a deficient number, since it is larger than the sum of its proper divisors (1).

122111934487 is an equidigital number, since it uses as much as digits as its factorization.

122111934487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 43.

The spelling of 122111934487 in words is "one hundred twenty-two billion, one hundred eleven million, nine hundred thirty-four thousand, four hundred eighty-seven".