22001110002000 has 400 divisors, whose sum is σ = 83652263323200. Its totient is φ = 5558174380800.

The previous prime is 22001110001987. The next prime is 22001110002029. The reversal of 22001110002000 is 20001110022.

It is a tau number, because it is divible by the number of its divisors (400).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 495930 + ... + 6651929.

It is an arithmetic number, because the mean of its divisors is an integer number (209130658308).

Almost surely, 2^{22001110002000} is an apocalyptic number.

22001110002000 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 22001110002000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41826131661600).

22001110002000 is an abundant number, since it is smaller than the sum of its proper divisors (61651153321200).

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

22001110002000 is a wasteful number, since it uses less digits than its factorization.

22001110002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7147913 (or 7147888 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 22001110002000 its reverse (20001110022), we get a palindrome (22021111112022).

The spelling of 22001110002000 in words is "twenty-two trillion, one billion, one hundred ten million, two thousand".