102222270 has 32 divisors (see below), whose sum is σ = 272593440. Its totient is φ = 27259200.

The previous prime is 102222269. The next prime is 102222301. The reversal of 102222270 is 72222201.

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 an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189031 + ... + 189570.

It is an arithmetic number, because the mean of its divisors is an integer number (8518545).

Almost surely, 2^102222270 is an apocalyptic number.

102222270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102222270 is an abundant number, since it is smaller than the sum of its proper divisors (170371170).

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

102222270 is a wasteful number, since it uses less digits than its factorization.

102222270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378617 (or 378611 counting only the distinct ones).

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

The square root of 102222270 is about 10110.5029548485. The cubic root of 102222270 is about 467.5720117463.

Adding to 102222270 its reverse (72222201), we get a palindrome (174444471).

The spelling of 102222270 in words is "one hundred two million, two hundred twenty-two thousand, two hundred seventy".