2110120202021 has 8 divisors (see below), whose sum is σ = 2273194409304. Its totient is φ = 1947154176000.

The previous prime is 2110120202011. The next prime is 2110120202087. The reversal of 2110120202021 is 1202020210112.

It can be written as a sum of positive squares in 4 ways, for example, as 324716485921 + 1785403716100 = 569839^2 + 1336190^2 .

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 2110120202021 - 2²⁶ = 2110053093157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2110120201987 and 2110120202005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110120202011) 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, 27004796 + ... + 27082821.

It is an arithmetic number, because the mean of its divisors is an integer number (284149301163).

Almost surely, 2^{2110120202021} is an apocalyptic number.

It is an amenable number.

2110120202021 is a deficient number, since it is larger than the sum of its proper divisors (163074207283).

2110120202021 is a wasteful number, since it uses less digits than its factorization.

2110120202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54090631.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2110120202021 its reverse (1202020210112), we get a palindrome (3312140412133).

The spelling of 2110120202021 in words is "two trillion, one hundred ten billion, one hundred twenty million, two hundred two thousand, twenty-one".