222245100 has 288 divisors, whose sum is σ = 891609600. Its totient is φ = 46137600.

The previous prime is 222245083. The next prime is 222245129. The reversal of 222245100 is 1542222.

222245100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 207366 + ... + 208434.

Almost surely, 2^222245100 is an apocalyptic number.

222245100 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 222245100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (445804800).

222245100 is an abundant number, since it is smaller than the sum of its proper divisors (669364500).

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

222245100 is a wasteful number, since it uses less digits than its factorization.

222245100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110 (or 1097 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 222245100 is about 14907.8871742444. The cubic root of 222245100 is about 605.7276494047.

Adding to 222245100 its reverse (1542222), we get a palindrome (223787322).

The spelling of 222245100 in words is "two hundred twenty-two million, two hundred forty-five thousand, one hundred".