121116426144 has 48 divisors (see below), whose sum is σ = 363349280448. Its totient is φ = 34604692992.

The previous prime is 121116426131. The next prime is 121116426161. The reversal of 121116426144 is 441624611121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

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, 90115717 + ... + 90117060.

It is an arithmetic number, because the mean of its divisors is an integer number (7569776676).

Almost surely, 2^121116426144 is an apocalyptic number.

121116426144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121116426144 is an abundant number, since it is smaller than the sum of its proper divisors (242232854304).

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

121116426144 is a wasteful number, since it uses less digits than its factorization.

121116426144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180232797 (or 180232789 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The spelling of 121116426144 in words is "one hundred twenty-one billion, one hundred sixteen million, four hundred twenty-six thousand, one hundred forty-four".