22001020001100 has 216 divisors, whose sum is σ = 78833031863040. Its totient is φ = 5027497223040.

The previous prime is 22001020001021. The next prime is 22001020001117. The reversal of 22001020001100 is 110002010022.

It is a super-3 number, since 3×22001020001100³ (a number of 41 digits) contains 333 as substring.

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

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, 23884891 + ... + 24788909.

Almost surely, 2^{22001020001100} is an apocalyptic number.

22001020001100 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 22001020001100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39416515931520).

22001020001100 is an abundant number, since it is smaller than the sum of its proper divisors (56832011861940).

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

22001020001100 is a wasteful number, since it uses less digits than its factorization.

22001020001100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907909 (or 907899 counting only the distinct ones).

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

Adding to 22001020001100 its reverse (110002010022), we get a palindrome (22111022011122).

The spelling of 22001020001100 in words is "twenty-two trillion, one billion, twenty million, one thousand, one hundred".