22011323432 has 16 divisors (see below), whose sum is σ = 47167121760. Its totient is φ = 9433424304.

The previous prime is 22011323429. The next prime is 22011323479. The reversal of 22011323432 is 23432311022.

It is a super-2 number, since 2×22011323432² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22011323398 and 22011323407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196529618 + ... + 196529729.

It is an arithmetic number, because the mean of its divisors is an integer number (2947945110).

Almost surely, 2^22011323432 is an apocalyptic number.

It is an amenable number.

22011323432 is an abundant number, since it is smaller than the sum of its proper divisors (25155798328).

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

22011323432 is a wasteful number, since it uses less digits than its factorization.

22011323432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393059360 (or 393059356 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 22011323432 its reverse (23432311022), we get a palindrome (45443634454).

The spelling of 22011323432 in words is "twenty-two billion, eleven million, three hundred twenty-three thousand, four hundred thirty-two".