10102212 has 48 divisors (see below), whose sum is σ = 26510400. Its totient is φ = 3326400.

The previous prime is 10102207. The next prime is 10102289. The reversal of 10102212 is 21220101.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10102194 and 10102203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9087 + ... + 10137.

It is an arithmetic number, because the mean of its divisors is an integer number (552300).

Almost surely, 2^10102212 is an apocalyptic number.

10102212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10102212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13255200).

10102212 is an abundant number, since it is smaller than the sum of its proper divisors (16408188).

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

10102212 is a wasteful number, since it uses less digits than its factorization.

10102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153 (or 1145 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 10102212 is about 3178.3977095386. The cubic root of 10102212 is about 216.1750124801.

Adding to 10102212 its reverse (21220101), we get a palindrome (31322313).

The spelling of 10102212 in words is "ten million, one hundred two thousand, two hundred twelve".