22001111001200 has 60 divisors (see below), whose sum is σ = 52860595864560. Its totient is φ = 8799957127680.

The previous prime is 22001111001157. The next prime is 22001111001203. The reversal of 22001111001200 is 210011110022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001111001203) by changing a digit.

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, 5753957 + ... + 8781243.

It is an arithmetic number, because the mean of its divisors is an integer number (881009931076).

Almost surely, 2^{22001111001200} is an apocalyptic number.

22001111001200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22001111001200 is an abundant number, since it is smaller than the sum of its proper divisors (30859484863360).

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

22001111001200 is a wasteful number, since it uses less digits than its factorization.

22001111001200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3045474 (or 3045463 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 22001111001200 its reverse (210011110022), we get a palindrome (22211122111222).

The spelling of 22001111001200 in words is "twenty-two trillion, one billion, one hundred eleven million, one thousand, two hundred".