2110110021121 has 4 divisors (see below), whose sum is σ = 2129830675632. Its totient is φ = 2090389366612.

The previous prime is 2110110021101. The next prime is 2110110021133. The reversal of 2110110021121 is 1211200110112.

It is a happy number.

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 2110110021121 - 2²¹ = 2110107923969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2110110021101) 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, 9860327095 + ... + 9860327308.

It is an arithmetic number, because the mean of its divisors is an integer number (532457668908).

Almost surely, 2^{2110110021121} is an apocalyptic number.

It is an amenable number.

2110110021121 is a deficient number, since it is larger than the sum of its proper divisors (19720654511).

2110110021121 is a wasteful number, since it uses less digits than its factorization.

2110110021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19720654510.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2110110021121 its reverse (1211200110112), we get a palindrome (3321310131233).

The spelling of 2110110021121 in words is "two trillion, one hundred ten billion, one hundred ten million, twenty-one thousand, one hundred twenty-one".