121200122122 has 16 divisors (see below), whose sum is σ = 184942728000. Its totient is φ = 59553226080.

The previous prime is 121200122117. The next prime is 121200122159. The reversal of 121200122122 is 221221002121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121200122096 and 121200122105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191347 + ... + 528217.

It is an arithmetic number, because the mean of its divisors is an integer number (11558920500).

Almost surely, 2^121200122122 is an apocalyptic number.

121200122122 is a deficient number, since it is larger than the sum of its proper divisors (63742605878).

121200122122 is a wasteful number, since it uses less digits than its factorization.

121200122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339981.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121200122122 its reverse (221221002121), we get a palindrome (342421124243).

The spelling of 121200122122 in words is "one hundred twenty-one billion, two hundred million, one hundred twenty-two thousand, one hundred twenty-two".