20404404222 has 16 divisors (see below), whose sum is σ = 41059171200. Its totient is φ = 6759740952.

The previous prime is 20404404211. The next prime is 20404404283. The reversal of 20404404222 is 22240440402.

It is a junction number, because it is equal to n+sod(n) for n = 20404404192 and 20404404201.

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, 10430722 + ... + 10432677.

It is an arithmetic number, because the mean of its divisors is an integer number (2566198200).

Almost surely, 2^20404404222 is an apocalyptic number.

20404404222 is an abundant number, since it is smaller than the sum of its proper divisors (20654766978).

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

20404404222 is a wasteful number, since it uses less digits than its factorization.

20404404222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20863567.

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 20404404222 its reverse (22240440402), we get a palindrome (42644844624).

The spelling of 20404404222 in words is "twenty billion, four hundred four million, four hundred four thousand, two hundred twenty-two".