2120121102211 has 32 divisors (see below), whose sum is σ = 2663907609600. Its totient is φ = 1645206837120.

The previous prime is 2120121102193. The next prime is 2120121102217. The reversal of 2120121102211 is 1122011210212.

It is not a de Polignac number, because 2120121102211 - 2⁵ = 2120121102179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120121102217) 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, 2945901 + ... + 3594241.

It is an arithmetic number, because the mean of its divisors is an integer number (83247112800).

Almost surely, 2^{2120121102211} is an apocalyptic number.

2120121102211 is a deficient number, since it is larger than the sum of its proper divisors (543786507389).

2120121102211 is a wasteful number, since it uses less digits than its factorization.

2120121102211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649459.

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

Adding to 2120121102211 its reverse (1122011210212), we get a palindrome (3242132312423).

The spelling of 2120121102211 in words is "two trillion, one hundred twenty billion, one hundred twenty-one million, one hundred two thousand, two hundred eleven".