222002221110 has 128 divisors (see below), whose sum is σ = 553727176704. Its totient is φ = 56916587520.

The previous prime is 222002221097. The next prime is 222002221123. The reversal of 222002221110 is 11122200222.

It is an interprime number because it is at equal distance from previous prime (222002221097) and next prime (222002221123).

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 222002221110.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 59564067 + ... + 59567793.

It is an arithmetic number, because the mean of its divisors is an integer number (4325993568).

Almost surely, 2^222002221110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222002221110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276863588352).

222002221110 is an abundant number, since it is smaller than the sum of its proper divisors (331724955594).

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

222002221110 is a wasteful number, since it uses less digits than its factorization.

222002221110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4398.

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

Adding to 222002221110 its reverse (11122200222), we get a palindrome (233124421332).

The spelling of 222002221110 in words is "two hundred twenty-two billion, two million, two hundred twenty-one thousand, one hundred ten".