102213412 has 18 divisors (see below), whose sum is σ = 208077702. Its totient is φ = 43805664.

The previous prime is 102213383. The next prime is 102213413. The reversal of 102213412 is 214312201.

It can be written as a sum of positive squares in only one way, i.e., 62346816 + 39866596 = 7896^2 + 6314^2 .

It is not an unprimeable number, because it can be changed into a prime (102213413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 260553 + ... + 260944.

Almost surely, 2^102213412 is an apocalyptic number.

It is an amenable number.

102213412 is an abundant number, since it is smaller than the sum of its proper divisors (105864290).

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

102213412 is a wasteful number, since it uses less digits than its factorization.

102213412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521515 (or 521506 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 102213412 is about 10110.0648860430. The cubic root of 102213412 is about 467.5585056466.

Adding to 102213412 its reverse (214312201), we get a palindrome (316525613).

The spelling of 102213412 in words is "one hundred two million, two hundred thirteen thousand, four hundred twelve".