222110000 has 200 divisors, whose sum is σ = 650791680. Its totient is φ = 71712000.

The previous prime is 222109991. The next prime is 222110027. The reversal of 222110000 is 11222.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 222110000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1329917 + ... + 1330083.

Almost surely, 2^222110000 is an apocalyptic number.

222110000 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 222110000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (325395840).

222110000 is an abundant number, since it is smaller than the sum of its proper divisors (428681680).

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

222110000 is a wasteful number, since it uses less digits than its factorization.

222110000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 222110000 is about 14903.3553269054. The cubic root of 222110000 is about 605.6048864537.

Adding to 222110000 its reverse (11222), we get a palindrome (222121222).

It can be divided in two parts, 2221 and 10000, that added together give a palindrome (12221).

The spelling of 222110000 in words is "two hundred twenty-two million, one hundred ten thousand".