121131221322 has 64 divisors (see below), whose sum is σ = 256890268800. Its totient is φ = 37971440640.

The previous prime is 121131221293. The next prime is 121131221339. The reversal of 121131221322 is 223122131121.

It is a nude number because it is divisible by every one of its digits.

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, 8610118 + ... + 8624174.

It is an arithmetic number, because the mean of its divisors is an integer number (4013910450).

Almost surely, 2^121131221322 is an apocalyptic number.

121131221322 is an abundant number, since it is smaller than the sum of its proper divisors (135759047478).

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

121131221322 is a wasteful number, since it uses less digits than its factorization.

121131221322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14631.

The product of its digits is 288, while the sum is 21.

Adding to 121131221322 its reverse (223122131121), we get a palindrome (344253352443).

The spelling of 121131221322 in words is "one hundred twenty-one billion, one hundred thirty-one million, two hundred twenty-one thousand, three hundred twenty-two".