2120201211121 has 4 divisors (see below), whose sum is σ = 2423087098432. Its totient is φ = 1817315323812.

The previous prime is 2120201211067. The next prime is 2120201211127. The reversal of 2120201211121 is 1211121020212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2120201211121 - 2⁷ = 2120201210993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2120201211095 and 2120201211104.

It is not an unprimeable number, because it can be changed into a prime (2120201211127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151442943645 + ... + 151442943658.

It is an arithmetic number, because the mean of its divisors is an integer number (605771774608).

Almost surely, 2^{2120201211121} is an apocalyptic number.

It is an amenable number.

2120201211121 is a deficient number, since it is larger than the sum of its proper divisors (302885887311).

2120201211121 is an equidigital number, since it uses as much as digits as its factorization.

2120201211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302885887310.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2120201211121 its reverse (1211121020212), we get a palindrome (3331322231333).

The spelling of 2120201211121 in words is "two trillion, one hundred twenty billion, two hundred one million, two hundred eleven thousand, one hundred twenty-one".