222130100 has 18 divisors (see below), whose sum is σ = 482022534. Its totient is φ = 88852000.

The previous prime is 222130093. The next prime is 222130123. The reversal of 222130100 is 1031222.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 43533604 + 178596496 = 6598^2 + 13364^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1110551 + ... + 1110750.

Almost surely, 2^222130100 is an apocalyptic number.

222130100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222130100 is an abundant number, since it is smaller than the sum of its proper divisors (259892434).

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

222130100 is a wasteful number, since it uses less digits than its factorization.

222130100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221315 (or 2221308 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 222130100 is about 14904.0296564386. The cubic root of 222130100 is about 605.6231541154.

Adding to 222130100 its reverse (1031222), we get a palindrome (223161322).

The spelling of 222130100 in words is "two hundred twenty-two million, one hundred thirty thousand, one hundred".