121221413132 has 12 divisors (see below), whose sum is σ = 213807847680. Its totient is φ = 60133456656.

The previous prime is 121221413101. The next prime is 121221413147. The reversal of 121221413132 is 231314122121.

It is a junction number, because it is equal to n+sod(n) for n = 121221413098 and 121221413107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119311907 + ... + 119312922.

It is an arithmetic number, because the mean of its divisors is an integer number (17817320640).

Almost surely, 2^121221413132 is an apocalyptic number.

It is an amenable number.

121221413132 is a deficient number, since it is larger than the sum of its proper divisors (92586434548).

121221413132 is a wasteful number, since it uses less digits than its factorization.

121221413132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238624960 (or 238624958 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

Adding to 121221413132 its reverse (231314122121), we get a palindrome (352535535253).

The spelling of 121221413132 in words is "one hundred twenty-one billion, two hundred twenty-one million, four hundred thirteen thousand, one hundred thirty-two".