2120121110211 has 64 divisors (see below), whose sum is σ = 3237539880960. Its totient is φ = 1222544148480.

The previous prime is 2120121110209. The next prime is 2120121110213. The reversal of 2120121110211 is 1120111210212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2120121110209) and next prime (2120121110213).

It is not a de Polignac number, because 2120121110211 - 2¹ = 2120121110209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2120121110213) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 457018830 + ... + 457023468.

It is an arithmetic number, because the mean of its divisors is an integer number (50586560640).

Almost surely, 2^{2120121110211} is an apocalyptic number.

2120121110211 is a deficient number, since it is larger than the sum of its proper divisors (1117418770749).

2120121110211 is a wasteful number, since it uses less digits than its factorization.

2120121110211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7556.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2120121110211 its reverse (1120111210212), we get a palindrome (3240232320423).

The spelling of 2120121110211 in words is "two trillion, one hundred twenty billion, one hundred twenty-one million, one hundred ten thousand, two hundred eleven".