120012120022121 has 16 divisors (see below), whose sum is σ = 125089926374400. Its totient is φ = 115009783277760.

The previous prime is 120012120022099. The next prime is 120012120022169. The reversal of 120012120022121 is 121220021210021.

It is a de Polignac number, because none of the positive numbers 2^k-120012120022121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120012120022121.

It is not an unprimeable number, because it can be changed into a prime (120012120022721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111054431 + ... + 112129883.

It is an arithmetic number, because the mean of its divisors is an integer number (7818120398400).

Almost surely, 2^{120012120022121} is an apocalyptic number.

It is an amenable number.

120012120022121 is a deficient number, since it is larger than the sum of its proper divisors (5077806352279).

120012120022121 is a wasteful number, since it uses less digits than its factorization.

120012120022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110536.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 120012120022121 its reverse (121220021210021), we get a palindrome (241232141232142).

The spelling of 120012120022121 in words is "one hundred twenty trillion, twelve billion, one hundred twenty million, twenty-two thousand, one hundred twenty-one".