121416692918 has 4 divisors (see below), whose sum is σ = 182125039380. Its totient is φ = 60708346458.

The previous prime is 121416692899. The next prime is 121416692933. The reversal of 121416692918 is 819296614121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 819296614121 = 37 ⋅22143151733.

It is a super-2 number, since 2×121416692918² (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 as a sum of consecutive naturals, namely, 30354173228 + ... + 30354173231.

It is an arithmetic number, because the mean of its divisors is an integer number (45531259845).

Almost surely, 2^121416692918 is an apocalyptic number.

121416692918 is a deficient number, since it is larger than the sum of its proper divisors (60708346462).

121416692918 is an equidigital number, since it uses as much as digits as its factorization.

121416692918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60708346461.

The product of its digits is 373248, while the sum is 50.

The spelling of 121416692918 in words is "one hundred twenty-one billion, four hundred sixteen million, six hundred ninety-two thousand, nine hundred eighteen".