22112201222 has 32 divisors (see below), whose sum is σ = 33992511840. Its totient is φ = 10784666880.

The previous prime is 22112201201. The next prime is 22112201227. The reversal of 22112201222 is 22210221122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22112201222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112201227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15494873 + ... + 15496299.

It is an arithmetic number, because the mean of its divisors is an integer number (1062265995).

Almost surely, 2^22112201222 is an apocalyptic number.

22112201222 is a deficient number, since it is larger than the sum of its proper divisors (11880310618).

22112201222 is a wasteful number, since it uses less digits than its factorization.

22112201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2456.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22112201222 its reverse (22210221122), we get a palindrome (44322422344).

The spelling of 22112201222 in words is "twenty-two billion, one hundred twelve million, two hundred one thousand, two hundred twenty-two".