2120332111021 has 8 divisors (see below), whose sum is σ = 2133121279104. Its totient is φ = 2107549068720.

The previous prime is 2120332110997. The next prime is 2120332111039. The reversal of 2120332111021 is 1201112330212.

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

It is a cyclic number.

It is not a de Polignac number, because 2120332111021 - 2¹⁹ = 2120331586733 is a prime.

It is a super-2 number, since 2×2120332111021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2120332111021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120332111721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 836145 + ... + 2222566.

It is an arithmetic number, because the mean of its divisors is an integer number (266640159888).

Almost surely, 2^{2120332111021} is an apocalyptic number.

It is an amenable number.

2120332111021 is a deficient number, since it is larger than the sum of its proper divisors (12789168083).

2120332111021 is a wasteful number, since it uses less digits than its factorization.

2120332111021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3062891.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2120332111021 its reverse (1201112330212), we get a palindrome (3321444441233).

The spelling of 2120332111021 in words is "two trillion, one hundred twenty billion, three hundred thirty-two million, one hundred eleven thousand, twenty-one".