2120110223021 has 8 divisors (see below), whose sum is σ = 2425292923200. Its totient is φ = 1815504975648.

The previous prime is 2120110223017. The next prime is 2120110223051. The reversal of 2120110223021 is 1203220110212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2120110223021 - 2² = 2120110223017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120110223051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144355331 + ... + 144370016.

It is an arithmetic number, because the mean of its divisors is an integer number (303161615400).

Almost surely, 2^{2120110223021} is an apocalyptic number.

It is an amenable number.

2120110223021 is a deficient number, since it is larger than the sum of its proper divisors (305182700179).

2120110223021 is a wasteful number, since it uses less digits than its factorization.

2120110223021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288726403.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2120110223021 its reverse (1203220110212), we get a palindrome (3323330333233).

The spelling of 2120110223021 in words is "two trillion, one hundred twenty billion, one hundred ten million, two hundred twenty-three thousand, twenty-one".