2110100111021 has 16 divisors (see below), whose sum is σ = 2475613377024. Its totient is φ = 1761003224064.

The previous prime is 2110100111017. The next prime is 2110100111051. The reversal of 2110100111021 is 1201110010112.

It is not a de Polignac number, because 2110100111021 - 2² = 2110100111017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2110100110993 and 2110100111011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110100111051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16552250 + ... + 16679243.

It is an arithmetic number, because the mean of its divisors is an integer number (154725836064).

Almost surely, 2^{2110100111021} is an apocalyptic number.

It is an amenable number.

2110100111021 is a deficient number, since it is larger than the sum of its proper divisors (365513266003).

2110100111021 is a wasteful number, since it uses less digits than its factorization.

2110100111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33231740.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 2110100111021 its reverse (1201110010112), we get a palindrome (3311210121133).

The spelling of 2110100111021 in words is "two trillion, one hundred ten billion, one hundred million, one hundred eleven thousand, twenty-one".