22512211305 has 16 divisors (see below), whose sum is σ = 36022371840. Its totient is φ = 12005568128.

The previous prime is 22512211301. The next prime is 22512211333. The reversal of 22512211305 is 50311221522.

It is a cyclic number.

It is not a de Polignac number, because 22512211305 - 2² = 22512211301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22512211301) 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 15 ways as a sum of consecutive naturals, for example, 165544 + ... + 269126.

It is an arithmetic number, because the mean of its divisors is an integer number (2251398240).

Almost surely, 2^22512211305 is an apocalyptic number.

It is an amenable number.

22512211305 is a deficient number, since it is larger than the sum of its proper divisors (13510160535).

22512211305 is a wasteful number, since it uses less digits than its factorization.

22512211305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118080.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 22512211305 its reverse (50311221522), we get a palindrome (72823432827).

The spelling of 22512211305 in words is "twenty-two billion, five hundred twelve million, two hundred eleven thousand, three hundred five".