121220132 has 24 divisors (see below), whose sum is σ = 245034720. Its totient is φ = 51858560.

The previous prime is 121220117. The next prime is 121220147. The reversal of 121220132 is 231022121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121220117) and next prime (121220147).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80282 + ... + 81777.

It is an arithmetic number, because the mean of its divisors is an integer number (10209780).

Almost surely, 2^121220132 is an apocalyptic number.

It is an amenable number.

121220132 is an abundant number, since it is smaller than the sum of its proper divisors (123814588).

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

121220132 is a wasteful number, since it uses less digits than its factorization.

121220132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162091 (or 162089 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 121220132 is about 11010.0014532242. The cubic root of 121220132 is about 494.9085053490.

Adding to 121220132 its reverse (231022121), we get a palindrome (352242253).

The spelling of 121220132 in words is "one hundred twenty-one million, two hundred twenty thousand, one hundred thirty-two".