102222 has 20 divisors (see below), whose sum is σ = 229416. Its totient is φ = 34020.

The previous prime is 102217. The next prime is 102229. The reversal of 102222 is 222201.

It is a Harshad number since it is a multiple of its sum of digits (9).

102222 is a modest number, since divided by 222 gives 102 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102229) by changing a digit.

102222 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 154 + ... + 477.

2¹⁰²²²² is an apocalyptic number.

102222 is an abundant number, since it is smaller than the sum of its proper divisors (127194).

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

102222 is an equidigital number, since it uses as much as digits as its factorization.

102222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 102222 is about 319.7217540300. The cubic root of 102222 is about 46.7571600079.

Adding to 102222 its reverse (222201), we get a palindrome (324423).

It can be divided in two parts, 102 and 222, that added together give a square (324 = 18²).

The spelling of 102222 in words is "one hundred two thousand, two hundred twenty-two", and thus it is an iban number.