2100111020010 has 64 divisors (see below), whose sum is σ = 5623533970560. Its totient is φ = 557705813760.

The previous prime is 2100111020003. The next prime is 2100111020011. The reversal of 2100111020010 is 100201110012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2100111019974 and 2100111020001.

It is not an unprimeable number, because it can be changed into a prime (2100111020011) 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, 16072252 + ... + 16202391.

It is an arithmetic number, because the mean of its divisors is an integer number (87867718290).

Almost surely, 2^{2100111020010} is an apocalyptic number.

2100111020010 is an abundant number, since it is smaller than the sum of its proper divisors (3523422950550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2100111020010 is a wasteful number, since it uses less digits than its factorization.

2100111020010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32274900 (or 32274894 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 2100111020010 its reverse (100201110012), we get a palindrome (2200312130022).

The spelling of 2100111020010 in words is "two trillion, one hundred billion, one hundred eleven million, twenty thousand, ten".