102243222 has 48 divisors (see below), whose sum is σ = 232727040. Its totient is φ = 33637032.

The previous prime is 102243221. The next prime is 102243223. The reversal of 102243222 is 222342201.

It is an interprime number because it is at equal distance from previous prime (102243221) and next prime (102243223).

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

It is a junction number, because it is equal to n+sod(n) for n = 102243195 and 102243204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102243221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37063 + ... + 39725.

It is an arithmetic number, because the mean of its divisors is an integer number (4848480).

Almost surely, 2^102243222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102243222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116363520).

102243222 is an abundant number, since it is smaller than the sum of its proper divisors (130483818).

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

102243222 is an equidigital number, since it uses as much as digits as its factorization.

102243222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2759 (or 2747 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 102243222 is about 10111.5390519940. The cubic root of 102243222 is about 467.6039548821.

Adding to 102243222 its reverse (222342201), we get a palindrome (324585423).

It can be divided in two parts, 1022 and 43222, that added together give a palindrome (44244).

The spelling of 102243222 in words is "one hundred two million, two hundred forty-three thousand, two hundred twenty-two".