622222211111 has 4 divisors (see below), whose sum is σ = 629213472000. Its totient is φ = 615230950224.

The previous prime is 622222211063. The next prime is 622222211147. The reversal of 622222211111 is 111112222226.

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

It is a cyclic number.

It is not a de Polignac number, because 622222211111 - 2¹⁸ = 622221948967 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622222211311) 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, 3495630311 + ... + 3495630488.

It is an arithmetic number, because the mean of its divisors is an integer number (157303368000).

Almost surely, 2^622222211111 is an apocalyptic number.

622222211111 is a deficient number, since it is larger than the sum of its proper divisors (6991260889).

622222211111 is an equidigital number, since it uses as much as digits as its factorization.

622222211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6991260888.

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

Adding to 622222211111 its reverse (111112222226), we get a palindrome (733334433337).

The spelling of 622222211111 in words is "six hundred twenty-two billion, two hundred twenty-two million, two hundred eleven thousand, one hundred eleven".