102213212 has 12 divisors (see below), whose sum is σ = 180644856. Its totient is φ = 50600400.

The previous prime is 102213191. The next prime is 102213227. The reversal of 102213212 is 212312201.

It is a happy number.

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, 126098 + ... + 126905.

It is an arithmetic number, because the mean of its divisors is an integer number (15053738).

Almost surely, 2^102213212 is an apocalyptic number.

It is an amenable number.

102213212 is a deficient number, since it is larger than the sum of its proper divisors (78431644).

102213212 is a wasteful number, since it uses less digits than its factorization.

102213212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253108 (or 253106 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 102213212 is about 10110.0549949048. The cubic root of 102213212 is about 467.5582006906.

Adding to 102213212 its reverse (212312201), we get a palindrome (314525413).

The spelling of 102213212 in words is "one hundred two million, two hundred thirteen thousand, two hundred twelve".