2120201120121 has 8 divisors (see below), whose sum is σ = 3230782659264. Its totient is φ = 1211543497200.

The previous prime is 2120201120087. The next prime is 2120201120129. The reversal of 2120201120121 is 1210211020212.

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

It is not a de Polignac number, because 2120201120121 - 2¹⁴ = 2120201103737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2120201120121.

It is not an unprimeable number, because it can be changed into a prime (2120201120129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50480979030 + ... + 50480979071.

It is an arithmetic number, because the mean of its divisors is an integer number (403847832408).

Almost surely, 2^{2120201120121} is an apocalyptic number.

2120201120121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2120201120121 is a deficient number, since it is larger than the sum of its proper divisors (1110581539143).

2120201120121 is a wasteful number, since it uses less digits than its factorization.

2120201120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100961958111.

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

Adding to 2120201120121 its reverse (1210211020212), we get a palindrome (3330412140333).

Subtracting from 2120201120121 its reverse (1210211020212), we obtain a palindrome (909990099909).

The spelling of 2120201120121 in words is "two trillion, one hundred twenty billion, two hundred one million, one hundred twenty thousand, one hundred twenty-one".