2100110211021 has 32 divisors (see below), whose sum is σ = 2884400640000. Its totient is φ = 1358176680000.

The previous prime is 2100110210993. The next prime is 2100110211083. The reversal of 2100110211021 is 1201120110012.

It is not a de Polignac number, because 2100110211021 - 2⁷ = 2100110210893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2100110210988 and 2100110211006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100110212021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73030396 + ... + 73059146.

It is an arithmetic number, because the mean of its divisors is an integer number (90137520000).

Almost surely, 2^{2100110211021} is an apocalyptic number.

It is an amenable number.

2100110211021 is a deficient number, since it is larger than the sum of its proper divisors (784290428979).

2100110211021 is a wasteful number, since it uses less digits than its factorization.

2100110211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30729.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2100110211021 its reverse (1201120110012), we get a palindrome (3301230321033).

The spelling of 2100110211021 in words is "two trillion, one hundred billion, one hundred ten million, two hundred eleven thousand, twenty-one".