22002201040 has 80 divisors (see below), whose sum is σ = 54389800080. Its totient is φ = 8248688640.

The previous prime is 22002201007. The next prime is 22002201041. The reversal of 22002201040 is 4010220022.

It can be written as a sum of positive squares in 8 ways, for example, as 2020682304 + 19981518736 = 44952^2 + 141356^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 22002201040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002201041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294196 + ... + 361324.

It is an arithmetic number, because the mean of its divisors is an integer number (679872501).

Almost surely, 2^22002201040 is an apocalyptic number.

22002201040 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 22002201040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27194900040).

22002201040 is an abundant number, since it is smaller than the sum of its proper divisors (32387599040).

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

22002201040 is a wasteful number, since it uses less digits than its factorization.

22002201040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67400 (or 67394 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 22002201040 its reverse (4010220022), we get a palindrome (26012421062).

The spelling of 22002201040 in words is "twenty-two billion, two million, two hundred one thousand, forty".