2110110121021 has 8 divisors (see below), whose sum is σ = 2430543042560. Its totient is φ = 1794424354128.

The previous prime is 2110110120983. The next prime is 2110110121069. The reversal of 2110110121021 is 1201210110112.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-2110110121021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2110110120992 and 2110110121010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110110124021) 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, 1186787706 + ... + 1186789483.

It is an arithmetic number, because the mean of its divisors is an integer number (303817880320).

Almost surely, 2^{2110110121021} is an apocalyptic number.

It is an amenable number.

2110110121021 is a deficient number, since it is larger than the sum of its proper divisors (320432921539).

2110110121021 is a wasteful number, since it uses less digits than its factorization.

2110110121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373577323.

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

Adding to 2110110121021 its reverse (1201210110112), we get a palindrome (3311320231133).

The spelling of 2110110121021 in words is "two trillion, one hundred ten billion, one hundred ten million, one hundred twenty-one thousand, twenty-one".