22212322040 has 32 divisors (see below), whose sum is σ = 50008402080. Its totient is φ = 8879475072.

The previous prime is 22212322037. The next prime is 22212322051. The reversal of 22212322040 is 4022321222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 104132 + ... + 235091.

It is an arithmetic number, because the mean of its divisors is an integer number (1562762565).

Almost surely, 2^22212322040 is an apocalyptic number.

22212322040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22212322040 is an abundant number, since it is smaller than the sum of its proper divisors (27796080040).

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

22212322040 is a wasteful number, since it uses less digits than its factorization.

22212322040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340871 (or 340867 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 22212322040 its reverse (4022321222), we get a palindrome (26234643262).

The spelling of 22212322040 in words is "twenty-two billion, two hundred twelve million, three hundred twenty-two thousand, forty".