22001121122200 has 96 divisors (see below), whose sum is σ = 55811113128000. Its totient is φ = 7999222083200.

The previous prime is 22001121122143. The next prime is 22001121122203. The reversal of 22001121122200 is 222112110022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001121122203) 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, 14176191 + ... + 15651409.

It is an arithmetic number, because the mean of its divisors is an integer number (581365761750).

Almost surely, 2^{22001121122200} is an apocalyptic number.

22001121122200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22001121122200 is an abundant number, since it is smaller than the sum of its proper divisors (33809992005800).

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

22001121122200 is a wasteful number, since it uses less digits than its factorization.

22001121122200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482025 (or 1482016 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22001121122200 its reverse (222112110022), we get a palindrome (22223233232222).

The spelling of 22001121122200 in words is "twenty-two trillion, one billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred".