102312222 has 32 divisors (see below), whose sum is σ = 221709312. Its totient is φ = 31350144.

The previous prime is 102312209. The next prime is 102312227. The reversal of 102312222 is 222213201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102312227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7278 + ... + 16049.

It is an arithmetic number, because the mean of its divisors is an integer number (6928416).

Almost surely, 2^102312222 is an apocalyptic number.

102312222 is an abundant number, since it is smaller than the sum of its proper divisors (119397090).

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

102312222 is a wasteful number, since it uses less digits than its factorization.

102312222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23392.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 102312222 is about 10114.9504200466. The cubic root of 102312222 is about 467.7091205088.

Adding to 102312222 its reverse (222213201), we get a palindrome (324525423).

The spelling of 102312222 in words is "one hundred two million, three hundred twelve thousand, two hundred twenty-two".