2101222111110 has 64 divisors (see below), whose sum is σ = 5076986632704. Its totient is φ = 556547270400.

The previous prime is 2101222111097. The next prime is 2101222111127. The reversal of 2101222111110 is 111112221012.

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 2101222111110.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6459465 + ... + 6776955.

It is an arithmetic number, because the mean of its divisors is an integer number (79327916136).

Almost surely, 2^{2101222111110} is an apocalyptic number.

2101222111110 is an abundant number, since it is smaller than the sum of its proper divisors (2975764521594).

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

2101222111110 is a wasteful number, since it uses less digits than its factorization.

2101222111110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318989.

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

Adding to 2101222111110 its reverse (111112221012), we get a palindrome (2212334332122).

It can be divided in two parts, 210122 and 2111110, that added together give a palindrome (2321232).

The spelling of 2101222111110 in words is "two trillion, one hundred one billion, two hundred twenty-two million, one hundred eleven thousand, one hundred ten".