2120110202121 has 64 divisors (see below), whose sum is σ = 3018048768000. Its totient is φ = 1321290786816.

The previous prime is 2120110202087. The next prime is 2120110202123. The reversal of 2120110202121 is 1212020110212.

It is not a de Polignac number, because 2120110202121 - 2²³ = 2120101813513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2120110202121.

It is not an unprimeable number, because it can be changed into a prime (2120110202123) 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, 883746280 + ... + 883748678.

It is an arithmetic number, because the mean of its divisors is an integer number (47157012000).

Almost surely, 2^{2120110202121} is an apocalyptic number.

It is an amenable number.

2120110202121 is a deficient number, since it is larger than the sum of its proper divisors (897938565879).

2120110202121 is a wasteful number, since it uses less digits than its factorization.

2120110202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3698.

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

Adding to 2120110202121 its reverse (1212020110212), we get a palindrome (3332130312333).

The spelling of 2120110202121 in words is "two trillion, one hundred twenty billion, one hundred ten million, two hundred two thousand, one hundred twenty-one".