121321320122 has 8 divisors (see below), whose sum is σ = 191559979200. Its totient is φ = 57467993724.

The previous prime is 121321320119. The next prime is 121321320137. The reversal of 121321320122 is 221023123121.

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

It is a super-2 number, since 2×121321320122² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121321320094 and 121321320103.

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, 1596333122 + ... + 1596333197.

It is an arithmetic number, because the mean of its divisors is an integer number (23944997400).

Almost surely, 2^121321320122 is an apocalyptic number.

121321320122 is a deficient number, since it is larger than the sum of its proper divisors (70238659078).

121321320122 is a wasteful number, since it uses less digits than its factorization.

121321320122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3192666340.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 121321320122 its reverse (221023123121), we get a palindrome (342344443243).

The spelling of 121321320122 in words is "one hundred twenty-one billion, three hundred twenty-one million, three hundred twenty thousand, one hundred twenty-two".