22721212059 has 48 divisors (see below), whose sum is σ = 38616544512. Its totient is φ = 11571428736.

The previous prime is 22721212043. The next prime is 22721212067. The reversal of 22721212059 is 95021212722.

It is not a de Polignac number, because 22721212059 - 2⁴ = 22721212043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22721212039) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 180112 + ... + 279074.

It is an arithmetic number, because the mean of its divisors is an integer number (804511344).

Almost surely, 2^22721212059 is an apocalyptic number.

22721212059 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

22721212059 is a deficient number, since it is larger than the sum of its proper divisors (15895332453).

22721212059 is a wasteful number, since it uses less digits than its factorization.

22721212059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99044 (or 99015 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

Multiplying 22721212059 by its sum of digits (33), we get a palindrome (749799997947).

The spelling of 22721212059 in words is "twenty-two billion, seven hundred twenty-one million, two hundred twelve thousand, fifty-nine".