2100211121210 has 16 divisors (see below), whose sum is σ = 3781000981800. Its totient is φ = 839946456576.

The previous prime is 2100211121201. The next prime is 2100211121219. The reversal of 2100211121210 is 121211120012.

It is an interprime number because it is at equal distance from previous prime (2100211121201) and next prime (2100211121219).

It can be written as a sum of positive squares in 4 ways, for example, as 1222764889369 + 877446231841 = 1105787^2 + 936721^2 .

It is not an unprimeable number, because it can be changed into a prime (2100211121219) 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, 17185055 + ... + 17306834.

Almost surely, 2^{2100211121210} is an apocalyptic number.

2100211121210 is a deficient number, since it is larger than the sum of its proper divisors (1680789860590).

2100211121210 is a wasteful number, since it uses less digits than its factorization.

2100211121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34497985.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2100211121210 its reverse (121211120012), we get a palindrome (2221422241222).

The spelling of 2100211121210 in words is "two trillion, one hundred billion, two hundred eleven million, one hundred twenty-one thousand, two hundred ten".