227222100 has 108 divisors (see below), whose sum is σ = 813982624. Its totient is φ = 51935040.

The previous prime is 227222089. The next prime is 227222101. The reversal of 227222100 is 1222722.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227222101) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11734 + ... + 24333.

Almost surely, 2^227222100 is an apocalyptic number.

227222100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

227222100 is an abundant number, since it is smaller than the sum of its proper divisors (586760524).

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

227222100 is a wasteful number, since it uses less digits than its factorization.

227222100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36094 (or 36084 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 227222100 is about 15073.8880186898. Note that the first 3 decimals coincide. The cubic root of 227222100 is about 610.2159049401.

Adding to 227222100 its reverse (1222722), we get a palindrome (228444822).

The spelling of 227222100 in words is "two hundred twenty-seven million, two hundred twenty-two thousand, one hundred".