22221120122 has 32 divisors (see below), whose sum is σ = 35349868800. Its totient is φ = 10446928128.

The previous prime is 22221120107. The next prime is 22221120127. The reversal of 22221120122 is 22102112222.

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 22221120122.

It is not an unprimeable number, because it can be changed into a prime (22221120127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2838758 + ... + 2846574.

It is an arithmetic number, because the mean of its divisors is an integer number (1104683400).

Almost surely, 2^22221120122 is an apocalyptic number.

22221120122 is a deficient number, since it is larger than the sum of its proper divisors (13128748678).

22221120122 is a wasteful number, since it uses less digits than its factorization.

22221120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8390.

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

Adding to 22221120122 its reverse (22102112222), we get a palindrome (44323232344).

The spelling of 22221120122 in words is "twenty-two billion, two hundred twenty-one million, one hundred twenty thousand, one hundred twenty-two".