121210144032 has 48 divisors (see below), whose sum is σ = 318197194560. Its totient is φ = 40400769792.

The previous prime is 121210144019. The next prime is 121210144051. The reversal of 121210144032 is 230441012121.

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

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, 1960894 + ... + 2021762.

It is an arithmetic number, because the mean of its divisors is an integer number (6629108220).

Almost surely, 2^121210144032 is an apocalyptic number.

121210144032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121210144032 is an abundant number, since it is smaller than the sum of its proper divisors (196987050528).

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

121210144032 is a wasteful number, since it uses less digits than its factorization.

121210144032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81625 (or 81617 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 121210144032 its reverse (230441012121), we get a palindrome (351651156153).

The spelling of 121210144032 in words is "one hundred twenty-one billion, two hundred ten million, one hundred forty-four thousand, thirty-two".