2102110111210 has 16 divisors (see below), whose sum is σ = 3783821769000. Its totient is φ = 840838806976.

The previous prime is 2102110111169. The next prime is 2102110111219. The reversal of 2102110111210 is 121110112012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2010244744561 + 91865366649 = 1417831^2 + 303093^2 .

It is not an unprimeable number, because it can be changed into a prime (2102110111219) 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, 1312476 + ... + 2434504.

Almost surely, 2^{2102110111210} is an apocalyptic number.

2102110111210 is a deficient number, since it is larger than the sum of its proper divisors (1681711657790).

2102110111210 is a wasteful number, since it uses less digits than its factorization.

2102110111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309385.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2102110111210 its reverse (121110112012), we get a palindrome (2223220223222).

The spelling of 2102110111210 in words is "two trillion, one hundred two billion, one hundred ten million, one hundred eleven thousand, two hundred ten".