22100021223 has 16 divisors (see below), whose sum is σ = 33684456960. Its totient is φ = 12625495776.

The previous prime is 22100021197. The next prime is 22100021243. The reversal of 22100021223 is 32212000122.

It is a happy number.

It is not a de Polignac number, because 22100021223 - 2⁶ = 22100021159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22100021243) 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, 39283 + ... + 213876.

It is an arithmetic number, because the mean of its divisors is an integer number (2105278560).

Almost surely, 2^22100021223 is an apocalyptic number.

22100021223 is a deficient number, since it is larger than the sum of its proper divisors (11584435737).

22100021223 is a wasteful number, since it uses less digits than its factorization.

22100021223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257326.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 22100021223 its reverse (32212000122), we get a palindrome (54312021345).

The spelling of 22100021223 in words is "twenty-two billion, one hundred million, twenty-one thousand, two hundred twenty-three".