102222222 has 8 divisors (see below), whose sum is σ = 204444456. Its totient is φ = 34074072.

The previous prime is 102222209. The next prime is 102222233. The reversal of 102222222 is 222222201.

It is a sphenic number, since it is the product of 3 distinct primes.

102222222 is an admirable number.

102222222 is a modest number, since divided by 22222 gives 1022 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8518513 + ... + 8518524.

It is an arithmetic number, because the mean of its divisors is an integer number (25555557).

Almost surely, 2^102222222 is an apocalyptic number.

102222222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

102222222 is a wasteful number, since it uses less digits than its factorization.

102222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17037042.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 102222222 is about 10110.5005810791. The cubic root of 102222222 is about 467.5719385612.

Adding to 102222222 its reverse (222222201), we get a palindrome (324444423).

The spelling of 102222222 in words is "one hundred two million, two hundred twenty-two thousand, two hundred twenty-two".