222213100 has 36 divisors (see below), whose sum is σ = 491312304. Its totient is φ = 87206080.

The previous prime is 222213091. The next prime is 222213107. The reversal of 222213100 is 1312222.

It is a super-2 number, since 2×222213100² = 98757323623220000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222213107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15664 + ... + 26263.

It is an arithmetic number, because the mean of its divisors is an integer number (13647564).

Almost surely, 2^222213100 is an apocalyptic number.

222213100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222213100 is an abundant number, since it is smaller than the sum of its proper divisors (269099204).

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

222213100 is a wasteful number, since it uses less digits than its factorization.

222213100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41994 (or 41987 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 222213100 is about 14906.8138782236. The cubic root of 222213100 is about 605.6985760750.

Adding to 222213100 its reverse (1312222), we get a palindrome (223525322).

It can be divided in two parts, 22 and 2213100, that added together give a palindrome (2213122).

The spelling of 222213100 in words is "two hundred twenty-two million, two hundred thirteen thousand, one hundred".