18222010106 has 4 divisors (see below), whose sum is σ = 27333015162. Its totient is φ = 9111005052.

The previous prime is 18222010073. The next prime is 18222010123. The reversal of 18222010106 is 60101022281.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60101022281 = 19 ⋅3163211699.

It can be written as a sum of positive squares in only one way, i.e., 13702809481 + 4519200625 = 117059^2 + 67225^2 .

It is a super-2 number, since 2×18222010106² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4555502525 + ... + 4555502528.

Almost surely, 2^18222010106 is an apocalyptic number.

18222010106 is a deficient number, since it is larger than the sum of its proper divisors (9111005056).

18222010106 is an equidigital number, since it uses as much as digits as its factorization.

18222010106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9111005055.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 18222010106 its reverse (60101022281), we get a palindrome (78323032387).

The spelling of 18222010106 in words is "eighteen billion, two hundred twenty-two million, ten thousand, one hundred six".