22123012007 has 16 divisors (see below), whose sum is σ = 24420444000. Its totient is φ = 19958690304.

The previous prime is 22123011959. The next prime is 22123012027. The reversal of 22123012007 is 70021032122.

It is a cyclic number.

It is not a de Polignac number, because 22123012007 - 2¹² = 22123007911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22123012007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22123012027) 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, 234782 + ... + 315227.

It is an arithmetic number, because the mean of its divisors is an integer number (1526277750).

Almost surely, 2^22123012007 is an apocalyptic number.

22123012007 is a deficient number, since it is larger than the sum of its proper divisors (2297431993).

22123012007 is a wasteful number, since it uses less digits than its factorization.

22123012007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550130.

The product of its (nonzero) digits is 336, while the sum is 20.

Adding to 22123012007 its reverse (70021032122), we get a palindrome (92144044129).

The spelling of 22123012007 in words is "twenty-two billion, one hundred twenty-three million, twelve thousand, seven".