122940211518 has 12 divisors (see below), whose sum is σ = 266370458328. Its totient is φ = 40980070500.

The previous prime is 122940211469. The next prime is 122940211573. The reversal of 122940211518 is 815112049221.

122940211518 is a `hidden beast` number, since 1 + 229 + 402 + 1 + 15 + 18 = 666.

It is a super-2 number, since 2×122940211518² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3415005858 + ... + 3415005893.

It is an arithmetic number, because the mean of its divisors is an integer number (22197538194).

Almost surely, 2^122940211518 is an apocalyptic number.

122940211518 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

122940211518 is an abundant number, since it is smaller than the sum of its proper divisors (143430246810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122940211518 is a wasteful number, since it uses less digits than its factorization.

122940211518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6830011759 (or 6830011756 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The spelling of 122940211518 in words is "one hundred twenty-two billion, nine hundred forty million, two hundred eleven thousand, five hundred eighteen".