2221001122110 has 96 divisors (see below), whose sum is σ = 5857655931360. Its totient is φ = 538206025728.

The previous prime is 2221001122091. The next prime is 2221001122111. The reversal of 2221001122110 is 112211001222.

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 2221001122110.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221001122111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4165309 + ... + 4668168.

It is an arithmetic number, because the mean of its divisors is an integer number (61017249285).

Almost surely, 2^{2221001122110} is an apocalyptic number.

2221001122110 is an abundant number, since it is smaller than the sum of its proper divisors (3636654809250).

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

2221001122110 is a wasteful number, since it uses less digits than its factorization.

2221001122110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8833550 (or 8833533 counting only the distinct ones).

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

Adding to 2221001122110 its reverse (112211001222), we get a palindrome (2333212123332).

The spelling of 2221001122110 in words is "two trillion, two hundred twenty-one billion, one million, one hundred twenty-two thousand, one hundred ten".