120120120200121 has 32 divisors (see below), whose sum is σ = 166359832974720. Its totient is φ = 77003448883200.

The previous prime is 120120120200083. The next prime is 120120120200123. The reversal of 120120120200121 is 121002021021021.

It is not a de Polignac number, because 120120120200121 - 2¹⁴ = 120120120183737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120120120200121.

It is not an unprimeable number, because it can be changed into a prime (120120120200123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18112681 + ... + 23839241.

It is an arithmetic number, because the mean of its divisors is an integer number (5198744780460).

Almost surely, 2^{120120120200121} is an apocalyptic number.

It is an amenable number.

120120120200121 is a deficient number, since it is larger than the sum of its proper divisors (46239712774599).

120120120200121 is a wasteful number, since it uses less digits than its factorization.

120120120200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5727577.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 120120120200121 its reverse (121002021021021), we get a palindrome (241122141221142).

The spelling of 120120120200121 in words is "one hundred twenty trillion, one hundred twenty billion, one hundred twenty million, two hundred thousand, one hundred twenty-one".