222222010000 has 100 divisors (see below), whose sum is σ = 538355892844. Its totient is φ = 88833600000.

The previous prime is 222222009991. The next prime is 222222010009. The reversal of 222222010000 is 10222222.

It is an interprime number because it is at equal distance from previous prime (222222009991) and next prime (222222010009).

It can be written as a sum of positive squares in 10 ways, for example, as 222221731216 + 278784 = 471404^2 + 528^2 .

It is a tau number, because it is divible by the number of its divisors (100).

It is not an unprimeable number, because it can be changed into a prime (222222010009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18604030 + ... + 18615970.

Almost surely, 2^222222010000 is an apocalyptic number.

222222010000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222222010000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269177946422).

222222010000 is an abundant number, since it is smaller than the sum of its proper divisors (316133882844).

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

222222010000 is a wasteful number, since it uses less digits than its factorization.

222222010000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13830 (or 13809 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 222222010000 its reverse (10222222), we get a palindrome (222232232222).

It can be divided in two parts, 222 and 222010000, that added together give a palindrome (222010222).

The spelling of 222222010000 in words is "two hundred twenty-two billion, two hundred twenty-two million, ten thousand".