22120211211222 has 32 divisors (see below), whose sum is σ = 45669804364800. Its totient is φ = 7135197075360.

The previous prime is 22120211211211. The next prime is 22120211211227. The reversal of 22120211211222 is 22211211202122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120211211227) 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, 804529 + ... + 6699827.

It is an arithmetic number, because the mean of its divisors is an integer number (1427181386400).

Almost surely, 2^{22120211211222} is an apocalyptic number.

22120211211222 is an abundant number, since it is smaller than the sum of its proper divisors (23549593153578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22120211211222 is a wasteful number, since it uses less digits than its factorization.

22120211211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5915508.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 22120211211222 its reverse (22211211202122), we get a palindrome (44331422413344).

It can be divided in two parts, 2212021 and 1211222, that added together give a palindrome (3423243).

The spelling of 22120211211222 in words is "twenty-two trillion, one hundred twenty billion, two hundred eleven million, two hundred eleven thousand, two hundred twenty-two".