22220212221200 has 180 divisors, whose sum is σ = 62714680073892. Its totient is φ = 7542928512000.

The previous prime is 22220212221157. The next prime is 22220212221223. The reversal of 22220212221200 is 212221202222.

It can be written as a sum of positive squares in 6 ways, for example, as 2333036295184 + 19887175926016 = 1527428^2 + 4459504^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3632699 + ... + 7591898.

Almost surely, 2^{22220212221200} is an apocalyptic number.

22220212221200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22220212221200 is an abundant number, since it is smaller than the sum of its proper divisors (40494467852692).

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

22220212221200 is a wasteful number, since it uses less digits than its factorization.

22220212221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11224730 (or 11224712 counting only the distinct ones).

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

Adding to 22220212221200 its reverse (212221202222), we get a palindrome (22432433423422).

The spelling of 22220212221200 in words is "twenty-two trillion, two hundred twenty billion, two hundred twelve million, two hundred twenty-one thousand, two hundred".