121416197754 has 16 divisors (see below), whose sum is σ = 242848625760. Its totient is φ = 40469360880.

The previous prime is 121416197711. The next prime is 121416197843. The reversal of 121416197754 is 457791614121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 577909 + ... + 759480.

It is an arithmetic number, because the mean of its divisors is an integer number (15178039110).

Almost surely, 2^121416197754 is an apocalyptic number.

121416197754 is an abundant number, since it is smaller than the sum of its proper divisors (121432428006).

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

121416197754 is a wasteful number, since it uses less digits than its factorization.

121416197754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352525.

The product of its digits is 423360, while the sum is 48.

The spelling of 121416197754 in words is "one hundred twenty-one billion, four hundred sixteen million, one hundred ninety-seven thousand, seven hundred fifty-four".