10612221 has 4 divisors (see below), whose sum is σ = 14149632. Its totient is φ = 7074812.

The previous prime is 10612219. The next prime is 10612237. The reversal of 10612221 is 12221601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10612221 - 2¹ = 10612219 is a prime.

It is a super-2 number, since 2×10612221² = 225238469105682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10612221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10612201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1768701 + ... + 1768706.

It is an arithmetic number, because the mean of its divisors is an integer number (3537408).

Almost surely, 2^10612221 is an apocalyptic number.

It is an amenable number.

10612221 is a deficient number, since it is larger than the sum of its proper divisors (3537411).

10612221 is an equidigital number, since it uses as much as digits as its factorization.

10612221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3537410.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 10612221 is about 3257.6404037278. The cubic root of 10612221 is about 219.7533116434.

Adding to 10612221 its reverse (12221601), we get a palindrome (22833822).

The spelling of 10612221 in words is "ten million, six hundred twelve thousand, two hundred twenty-one".