102212222 has 16 divisors (see below), whose sum is σ = 176204160. Its totient is φ = 43559448.

The previous prime is 102212219. The next prime is 102212237. The reversal of 102212222 is 222212201.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 102212197 and 102212206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17888 + ... + 22899.

It is an arithmetic number, because the mean of its divisors is an integer number (11012760).

Almost surely, 2^102212222 is an apocalyptic number.

102212222 is a deficient number, since it is larger than the sum of its proper divisors (73991938).

102212222 is a wasteful number, since it uses less digits than its factorization.

102212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40975.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 102212222 is about 10110.0060336283. The cubic root of 102212222 is about 467.5566911529.

Adding to 102212222 its reverse (222212201), we get a palindrome (324424423).

The spelling of 102212222 in words is "one hundred two million, two hundred twelve thousand, two hundred twenty-two".