2222122110 has 128 divisors (see below), whose sum is σ = 5842368000. Its totient is φ = 537656832.

The previous prime is 2222122099. The next prime is 2222122121. The reversal of 2222122110 is 112212222.

2222122110 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2222122099) and next prime (2222122121).

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 2222122110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9703476 + ... + 9703704.

It is an arithmetic number, because the mean of its divisors is an integer number (45643500).

Almost surely, 2^2222122110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2222122110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2921184000).

2222122110 is an abundant number, since it is smaller than the sum of its proper divisors (3620245890).

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

2222122110 is a wasteful number, since it uses less digits than its factorization.

2222122110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2222122110 is about 47139.3902166755. The cubic root of 2222122110 is about 1304.9362837904.

Adding to 2222122110 its reverse (112212222), we get a palindrome (2334334332).

The spelling of 2222122110 in words is "two billion, two hundred twenty-two million, one hundred twenty-two thousand, one hundred ten".