121321222132 has 24 divisors (see below), whose sum is σ = 232313008032. Its totient is φ = 54979399200.

The previous prime is 121321222123. The next prime is 121321222133. The reversal of 121321222132 is 231222123121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121321222133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4150543 + ... + 4179670.

It is an arithmetic number, because the mean of its divisors is an integer number (9679708668).

Almost surely, 2^121321222132 is an apocalyptic number.

It is an amenable number.

121321222132 is a deficient number, since it is larger than the sum of its proper divisors (110991785900).

121321222132 is a wasteful number, since it uses less digits than its factorization.

121321222132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8330559 (or 8330557 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

Adding to 121321222132 its reverse (231222123121), we get a palindrome (352543345253).

The spelling of 121321222132 in words is "one hundred twenty-one billion, three hundred twenty-one million, two hundred twenty-two thousand, one hundred thirty-two".