22011344020 has 24 divisors (see below), whose sum is σ = 46226917800. Its totient is φ = 8803948032.

The previous prime is 22011343979. The next prime is 22011344039. The reversal of 22011344020 is 2044311022.

It can be written as a sum of positive squares in 4 ways, for example, as 1787091076 + 20224252944 = 42274^2 + 142212^2 .

It is a super-3 number, since 3×22011344020³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389736 + ... + 442624.

It is an arithmetic number, because the mean of its divisors is an integer number (1926121575).

Almost surely, 2^22011344020 is an apocalyptic number.

22011344020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22011344020 is an abundant number, since it is smaller than the sum of its proper divisors (24215573780).

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

22011344020 is a wasteful number, since it uses less digits than its factorization.

22011344020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73707 (or 73705 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22011344020 its reverse (2044311022), we get a palindrome (24055655042).

The spelling of 22011344020 in words is "twenty-two billion, eleven million, three hundred forty-four thousand, twenty".