16261222 has 4 divisors (see below), whose sum is σ = 24391836. Its totient is φ = 8130610.

The previous prime is 16261211. The next prime is 16261237. The reversal of 16261222 is 22216261.

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

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 16261193 and 16261202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4065304 + ... + 4065307.

It is an arithmetic number, because the mean of its divisors is an integer number (6097959).

Almost surely, 2^16261222 is an apocalyptic number.

16261222 is a deficient number, since it is larger than the sum of its proper divisors (8130614).

16261222 is an equidigital number, since it uses as much as digits as its factorization.

16261222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8130613.

The product of its digits is 576, while the sum is 22.

The square root of 16261222 is about 4032.5205517145. The cubic root of 16261222 is about 253.3481435632.

Adding to 16261222 its reverse (22216261), we get a palindrome (38477483).

The spelling of 16261222 in words is "sixteen million, two hundred sixty-one thousand, two hundred twenty-two".