2111110212210 has 32 divisors (see below), whose sum is σ = 5068424586240. Its totient is φ = 562767159168.

The previous prime is 2111110212193. The next prime is 2111110212217. The reversal of 2111110212210 is 122120111112.

It is a happy number.

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 2111110212210.

It is not an unprimeable number, because it can be changed into a prime (2111110212217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12134947 + ... + 12307686.

It is an arithmetic number, because the mean of its divisors is an integer number (158388268320).

Almost surely, 2^{2111110212210} is an apocalyptic number.

2111110212210 is an abundant number, since it is smaller than the sum of its proper divisors (2957314374030).

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

2111110212210 is a wasteful number, since it uses less digits than its factorization.

2111110212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24445522.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2111110212210 its reverse (122120111112), we get a palindrome (2233230323322).

The spelling of 2111110212210 in words is "two trillion, one hundred eleven billion, one hundred ten million, two hundred twelve thousand, two hundred ten".