102212412 has 48 divisors (see below), whose sum is σ = 243586560. Its totient is φ = 33351552.

The previous prime is 102212387. The next prime is 102212417. The reversal of 102212412 is 214212201.

It is a junction number, because it is equal to n+sod(n) for n = 102212391 and 102212400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102212417) 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, 129483 + ... + 130269.

It is an arithmetic number, because the mean of its divisors is an integer number (5074720).

Almost surely, 2^102212412 is an apocalyptic number.

102212412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102212412 is an abundant number, since it is smaller than the sum of its proper divisors (141374148).

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

102212412 is a wasteful number, since it uses less digits than its factorization.

102212412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010 (or 1008 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 102212412 is about 10110.0154302553. The cubic root of 102212412 is about 467.5569808629.

Adding to 102212412 its reverse (214212201), we get a palindrome (316424613).

The spelling of 102212412 in words is "one hundred two million, two hundred twelve thousand, four hundred twelve".