12022201221222 has 48 divisors (see below), whose sum is σ = 24419425378320. Its totient is φ = 3945358027776.

The previous prime is 12022201221179. The next prime is 12022201221223. The reversal of 12022201221222 is 22212210222021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022201221223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28782978 + ... + 29197674.

It is an arithmetic number, because the mean of its divisors is an integer number (508738028715).

Almost surely, 2^{12022201221222} is an apocalyptic number.

12022201221222 is an abundant number, since it is smaller than the sum of its proper divisors (12397224157098).

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

12022201221222 is an equidigital number, since it uses as much as digits as its factorization.

12022201221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415257 (or 415024 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 12022201221222 its reverse (22212210222021), we get a palindrome (34234411443243).

The spelling of 12022201221222 in words is "twelve trillion, twenty-two billion, two hundred one million, two hundred twenty-one thousand, two hundred twenty-two".