102222223212 has 12 divisors (see below), whose sum is σ = 238518520856. Its totient is φ = 34074074400.

The previous prime is 102222223157. The next prime is 102222223223. The reversal of 102222223212 is 212322222201.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4259259289 + ... + 4259259312.

Almost surely, 2^102222223212 is an apocalyptic number.

102222223212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102222223212 is an abundant number, since it is smaller than the sum of its proper divisors (136296297644).

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

102222223212 is a wasteful number, since it uses less digits than its factorization.

102222223212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8518518608 (or 8518518606 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 102222223212 its reverse (212322222201), we get a palindrome (314544445413).

The spelling of 102222223212 in words is "one hundred two billion, two hundred twenty-two million, two hundred twenty-three thousand, two hundred twelve".