22001112021200 has 360 divisors, whose sum is σ = 58140983113920. Its totient is φ = 7995494707200.

The previous prime is 22001112021127. The next prime is 22001112021233. The reversal of 22001112021200 is 212021110022.

It is a super-2 number, since 2×22001112021200² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3086139236 + ... + 3086146364.

It is an arithmetic number, because the mean of its divisors is an integer number (161502730872).

Almost surely, 2^{22001112021200} is an apocalyptic number.

22001112021200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22001112021200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29070491556960).

22001112021200 is an abundant number, since it is smaller than the sum of its proper divisors (36139871092720).

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

22001112021200 is a wasteful number, since it uses less digits than its factorization.

22001112021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7887 (or 7863 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22001112021200 its reverse (212021110022), we get a palindrome (22213133131222).

The spelling of 22001112021200 in words is "twenty-two trillion, one billion, one hundred twelve million, twenty-one thousand, two hundred".