22012122021222 has 8 divisors (see below), whose sum is σ = 44024244042456. Its totient is φ = 7337374007072.

The previous prime is 22012122021209. The next prime is 22012122021229. The reversal of 22012122021222 is 22212022121022.

It is a sphenic number, since it is the product of 3 distinct primes.

22012122021222 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012122021229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1834343501763 + ... + 1834343501774.

It is an arithmetic number, because the mean of its divisors is an integer number (5503030505307).

Almost surely, 2^{22012122021222} is an apocalyptic number.

22012122021222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22012122021222 is a wasteful number, since it uses less digits than its factorization.

22012122021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3668687003542.

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

Adding to 22012122021222 its reverse (22212022121022), we get a palindrome (44224144142244).

The spelling of 22012122021222 in words is "twenty-two trillion, twelve billion, one hundred twenty-two million, twenty-one thousand, two hundred twenty-two".