22011220001200 has 60 divisors (see below), whose sum is σ = 52897107491208. Its totient is φ = 8801965388800.

The previous prime is 22011220001171. The next prime is 22011220001231. The reversal of 22011220001200 is 210002211022.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6485017 + ... + 9277816.

Almost surely, 2^{22011220001200} is an apocalyptic number.

22011220001200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22011220001200 is an abundant number, since it is smaller than the sum of its proper divisors (30885887490008).

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

22011220001200 is a wasteful number, since it uses less digits than its factorization.

22011220001200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15766342 (or 15766331 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22011220001200 its reverse (210002211022), we get a palindrome (22221222212222).

The spelling of 22011220001200 in words is "twenty-two trillion, eleven billion, two hundred twenty million, one thousand, two hundred".