121032221232 has 160 divisors (see below), whose sum is σ = 340312440832. Its totient is φ = 36844803072.

The previous prime is 121032221183. The next prime is 121032221251. The reversal of 121032221232 is 232122230121.

It is a junction number, because it is equal to n+sod(n) for n = 121032221199 and 121032221208.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31459533 + ... + 31463379.

Almost surely, 2^121032221232 is an apocalyptic number.

121032221232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121032221232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170156220416).

121032221232 is an abundant number, since it is smaller than the sum of its proper divisors (219280219600).

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

121032221232 is a wasteful number, since it uses less digits than its factorization.

121032221232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4395 (or 4389 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 121032221232 its reverse (232122230121), we get a palindrome (353154451353).

The spelling of 121032221232 in words is "one hundred twenty-one billion, thirty-two million, two hundred twenty-one thousand, two hundred thirty-two".