120201021002121 has 32 divisors (see below), whose sum is σ = 165685644054528. Its totient is φ = 77433029593920.

The previous prime is 120201021002071. The next prime is 120201021002141. The reversal of 120201021002121 is 121200120102021.

It is not a de Polignac number, because 120201021002121 - 2⁶ = 120201021002057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120201021002121.

It is not an unprimeable number, because it can be changed into a prime (120201021002141) 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, 172822566 + ... + 173516688.

It is an arithmetic number, because the mean of its divisors is an integer number (5177676376704).

Almost surely, 2^{120201021002121} is an apocalyptic number.

It is an amenable number.

120201021002121 is a deficient number, since it is larger than the sum of its proper divisors (45484623052407).

120201021002121 is a wasteful number, since it uses less digits than its factorization.

120201021002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696941.

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

Adding to 120201021002121 its reverse (121200120102021), we get a palindrome (241401141104142).

The spelling of 120201021002121 in words is "one hundred twenty trillion, two hundred one billion, twenty-one million, two thousand, one hundred twenty-one".