22122212001200 has 120 divisors (see below), whose sum is σ = 55708125785088. Its totient is φ = 8426194064640.

The previous prime is 22122212001199. The next prime is 22122212001203. The reversal of 22122212001200 is 210021222122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22122212001203) 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, 3339854 + ... + 7443053.

Almost surely, 2^{22122212001200} is an apocalyptic number.

22122212001200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22122212001200 is an abundant number, since it is smaller than the sum of its proper divisors (33585913783888).

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

22122212001200 is a wasteful number, since it uses less digits than its factorization.

22122212001200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10783171 (or 10783160 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22122212001200 its reverse (210021222122), we get a palindrome (22332233223322).

The spelling of 22122212001200 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred twelve million, one thousand, two hundred".