2102112021210 has 16 divisors (see below), whose sum is σ = 5045068850976. Its totient is φ = 560563205648.

The previous prime is 2102112021203. The next prime is 2102112021239. The reversal of 2102112021210 is 121202112012.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2102112021210.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35035200324 + ... + 35035200383.

It is an arithmetic number, because the mean of its divisors is an integer number (315316803186).

Almost surely, 2^{2102112021210} is an apocalyptic number.

2102112021210 is an abundant number, since it is smaller than the sum of its proper divisors (2942956829766).

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

2102112021210 is a wasteful number, since it uses less digits than its factorization.

2102112021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70070400717.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2102112021210 its reverse (121202112012), we get a palindrome (2223314133222).

The spelling of 2102112021210 in words is "two trillion, one hundred two billion, one hundred twelve million, twenty-one thousand, two hundred ten".