22451212273 has 16 divisors (see below), whose sum is σ = 26034278400. Its totient is φ = 18964120896.

The previous prime is 22451212261. The next prime is 22451212279. The reversal of 22451212273 is 37221215422.

It is not a de Polignac number, because 22451212273 - 2⁵ = 22451212241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22451212279) 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, 47715 + ... + 217207.

It is an arithmetic number, because the mean of its divisors is an integer number (1627142400).

Almost surely, 2^22451212273 is an apocalyptic number.

It is an amenable number.

22451212273 is a deficient number, since it is larger than the sum of its proper divisors (3583066127).

22451212273 is a wasteful number, since it uses less digits than its factorization.

22451212273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169776.

The product of its digits is 13440, while the sum is 31.

Adding to 22451212273 its reverse (37221215422), we get a palindrome (59672427695).

The spelling of 22451212273 in words is "twenty-two billion, four hundred fifty-one million, two hundred twelve thousand, two hundred seventy-three".