121431451122 has 48 divisors (see below), whose sum is σ = 272364768000. Its totient is φ = 39053986272.

The previous prime is 121431451121. The next prime is 121431451157. The reversal of 121431451122 is 221154134121.

121431451122 is a `hidden beast` number, since 1 + 2 + 143 + 1 + 4 + 511 + 2 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (121431451121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 670329 + ... + 831987.

It is an arithmetic number, because the mean of its divisors is an integer number (5674266000).

Almost surely, 2^121431451122 is an apocalyptic number.

121431451122 is an abundant number, since it is smaller than the sum of its proper divisors (150933316878).

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

121431451122 is a wasteful number, since it uses less digits than its factorization.

121431451122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163135 (or 163132 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

Adding to 121431451122 its reverse (221154134121), we get a palindrome (342585585243).

The spelling of 121431451122 in words is "one hundred twenty-one billion, four hundred thirty-one million, four hundred fifty-one thousand, one hundred twenty-two".