10221412 has 6 divisors (see below), whose sum is σ = 17887478. Its totient is φ = 5110704.

The previous prime is 10221397. The next prime is 10221443. The reversal of 10221412 is 21412201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7485696 + 2735716 = 2736^2 + 1654^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10221392 and 10221401.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277673 + ... + 1277680.

Almost surely, 2^10221412 is an apocalyptic number.

It is an amenable number.

10221412 is a deficient number, since it is larger than the sum of its proper divisors (7666066).

10221412 is a wasteful number, since it uses less digits than its factorization.

10221412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555357 (or 2555355 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 10221412 is about 3197.0943057720. The cubic root of 10221412 is about 217.0219349655.

Adding to 10221412 its reverse (21412201), we get a palindrome (31633613).

The spelling of 10221412 in words is "ten million, two hundred twenty-one thousand, four hundred twelve".