2100020100010 has 16 divisors (see below), whose sum is σ = 4320041348736. Its totient is φ = 720006891408.

The previous prime is 2100020099923. The next prime is 2100020100011. The reversal of 2100020100010 is 100010200012.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a junction number, because it is equal to n+sod(n) for n = 2100020099966 and 2100020100002.

It is not an unprimeable number, because it can be changed into a prime (2100020100011) 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, 15000143502 + ... + 15000143641.

It is an arithmetic number, because the mean of its divisors is an integer number (270002584296).

Almost surely, 2^{2100020100010} is an apocalyptic number.

2100020100010 is an abundant number, since it is smaller than the sum of its proper divisors (2220021248726).

2100020100010 is a wasteful number, since it uses less digits than its factorization.

2100020100010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30000287157.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 2100020100010 its reverse (100010200012), we get a palindrome (2200030300022).

The spelling of 2100020100010 in words is "two trillion, one hundred billion, twenty million, one hundred thousand, ten".