22011223121022 has 32 divisors (see below), whose sum is σ = 45999652188672. Its totient is φ = 7008417640224.

The previous prime is 22011223121021. The next prime is 22011223121051. The reversal of 22011223121022 is 22012132211022.

It is a self number, because there is not a number n which added to its sum of digits gives 22011223121022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011223121021) 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, 109598173 + ... + 109798824.

It is an arithmetic number, because the mean of its divisors is an integer number (1437489130896).

Almost surely, 2^{22011223121022} is an apocalyptic number.

22011223121022 is an abundant number, since it is smaller than the sum of its proper divisors (23988429067650).

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

22011223121022 is a wasteful number, since it uses less digits than its factorization.

22011223121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219397752.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 22011223121022 its reverse (22012132211022), we get a palindrome (44023355332044).

The spelling of 22011223121022 in words is "twenty-two trillion, eleven billion, two hundred twenty-three million, one hundred twenty-one thousand, twenty-two".