13022222 has 4 divisors (see below), whose sum is σ = 19533336. Its totient is φ = 6511110.

The previous prime is 13022171. The next prime is 13022231. The reversal of 13022222 is 22222031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22222031 = 13 ⋅1709387.

13022222 is a modest number, since divided by 2222 gives 1302 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 13022197 and 13022206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3255554 + ... + 3255557.

It is an arithmetic number, because the mean of its divisors is an integer number (4883334).

Almost surely, 2^13022222 is an apocalyptic number.

13022222 is a deficient number, since it is larger than the sum of its proper divisors (6511114).

13022222 is an equidigital number, since it uses as much as digits as its factorization.

13022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6511113.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 13022222 is about 3608.6315966028. The cubic root of 13022222 is about 235.2673703493.

Adding to 13022222 its reverse (22222031), we get a palindrome (35244253).

The spelling of 13022222 in words is "thirteen million, twenty-two thousand, two hundred twenty-two".