22033431420 has 384 divisors, whose sum is σ = 84016300032. Its totient is φ = 4165862400.

The previous prime is 22033431419. The next prime is 22033431421. The reversal of 22033431420 is 2413433022.

It is an interprime number because it is at equal distance from previous prime (22033431419) and next prime (22033431421).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22033431421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4261677 + ... + 4266843.

It is an arithmetic number, because the mean of its divisors is an integer number (218792448).

Almost surely, 2^22033431420 is an apocalyptic number.

22033431420 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 22033431420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42008150016).

22033431420 is an abundant number, since it is smaller than the sum of its proper divisors (61982868612).

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

22033431420 is a wasteful number, since it uses less digits than its factorization.

22033431420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5281 (or 5279 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 22033431420 its reverse (2413433022), we get a palindrome (24446864442).

The spelling of 22033431420 in words is "twenty-two billion, thirty-three million, four hundred thirty-one thousand, four hundred twenty".