10402222 has 4 divisors (see below), whose sum is σ = 15603336. Its totient is φ = 5201110.

The previous prime is 10402211. The next prime is 10402229. The reversal of 10402222 is 22220401.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

10402222 is a modest number, since divided by 2222 gives 1040 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10402229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2600554 + ... + 2600557.

It is an arithmetic number, because the mean of its divisors is an integer number (3900834).

Almost surely, 2^10402222 is an apocalyptic number.

10402222 is a deficient number, since it is larger than the sum of its proper divisors (5201114).

10402222 is an equidigital number, since it uses as much as digits as its factorization.

10402222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5201113.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 10402222 is about 3225.2475873954. The cubic root of 10402222 is about 218.2941208577.

Adding to 10402222 its reverse (22220401), we get a palindrome (32622623).

The spelling of 10402222 in words is "ten million, four hundred two thousand, two hundred twenty-two".