2100210000010 has 16 divisors (see below), whose sum is σ = 3782643085800. Its totient is φ = 839580647616.

The previous prime is 2100210000001. The next prime is 2100210000017. The reversal of 2100210000010 is 100000120012.

It can be written as a sum of positive squares in 4 ways, for example, as 1692437077969 + 407772922041 = 1300937^2 + 638571^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2100209999948 and 2100210000002.

It is not an unprimeable number, because it can be changed into a prime (2100210000017) 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, 62901525 + ... + 62934904.

Almost surely, 2^{2100210000010} is an apocalyptic number.

2100210000010 is a deficient number, since it is larger than the sum of its proper divisors (1682433085790).

2100210000010 is a wasteful number, since it uses less digits than its factorization.

2100210000010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125838105.

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

Adding to 2100210000010 its reverse (100000120012), we get a palindrome (2200210120022).

The spelling of 2100210000010 in words is "two trillion, one hundred billion, two hundred ten million, ten", and thus it is an aban number.