121272616176 has 40 divisors (see below), whose sum is σ = 314053626960. Its totient is φ = 40325362176.

The previous prime is 121272616141. The next prime is 121272616183. The reversal of 121272616176 is 671616272121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3069015 + ... + 3108278.

It is an arithmetic number, because the mean of its divisors is an integer number (7851340674).

Almost surely, 2^121272616176 is an apocalyptic number.

121272616176 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

121272616176 is an abundant number, since it is smaller than the sum of its proper divisors (192781010784).

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

121272616176 is a wasteful number, since it uses less digits than its factorization.

121272616176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6177713 (or 6177707 counting only the distinct ones).

The product of its digits is 84672, while the sum is 42.

Adding to 121272616176 its reverse (671616272121), we get a palindrome (792888888297).

The spelling of 121272616176 in words is "one hundred twenty-one billion, two hundred seventy-two million, six hundred sixteen thousand, one hundred seventy-six".