22212011222200 has 96 divisors (see below), whose sum is σ = 52267229348400. Its totient is φ = 8777565885440.

The previous prime is 22212011222131. The next prime is 22212011222201. The reversal of 22212011222200 is 222211021222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212011222201) 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, 20602962 + ... + 21654238.

Almost surely, 2^{22212011222200} is an apocalyptic number.

22212011222200 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 22212011222200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26133614674200).

22212011222200 is an abundant number, since it is smaller than the sum of its proper divisors (30055218126200).

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

22212011222200 is a wasteful number, since it uses less digits than its factorization.

22212011222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052569 (or 1052560 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22212011222200 its reverse (222211021222), we get a palindrome (22434222243422).

The spelling of 22212011222200 in words is "twenty-two trillion, two hundred twelve billion, eleven million, two hundred twenty-two thousand, two hundred".