121220131320122 has 8 divisors (see below), whose sum is σ = 181831028909556. Its totient is φ = 60609788350272.

The previous prime is 121220131320049. The next prime is 121220131320139. The reversal of 121220131320122 is 221023131022121.

It can be written as a sum of positive squares in 2 ways, for example, as 96509777475721 + 24710353844401 = 9823939^2 + 4970951^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138108053 + ... + 138983000.

Almost surely, 2^{121220131320122} is an apocalyptic number.

121220131320122 is a deficient number, since it is larger than the sum of its proper divisors (60610897589434).

121220131320122 is a wasteful number, since it uses less digits than its factorization.

121220131320122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277309792.

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

Adding to 121220131320122 its reverse (221023131022121), we get a palindrome (342243262342243).

The spelling of 121220131320122 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred thirty-one million, three hundred twenty thousand, one hundred twenty-two".