22212022122200 has 192 divisors, whose sum is σ = 55638131342400. Its totient is φ = 8216067686400.

The previous prime is 22212022122197. The next prime is 22212022122223. The reversal of 22212022122200 is 222122021222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 190542332 + ... + 190658868.

It is an arithmetic number, because the mean of its divisors is an integer number (289781934075).

Almost surely, 2^{22212022122200} is an apocalyptic number.

22212022122200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22212022122200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27819065671200).

22212022122200 is an abundant number, since it is smaller than the sum of its proper divisors (33426109220200).

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

22212022122200 is a wasteful number, since it uses less digits than its factorization.

22212022122200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117550 (or 117541 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 22212022122200 its reverse (222122021222), we get a palindrome (22434144143422).

The spelling of 22212022122200 in words is "twenty-two trillion, two hundred twelve billion, twenty-two million, one hundred twenty-two thousand, two hundred".