22100002123 has 4 divisors (see below), whose sum is σ = 22106271600. Its totient is φ = 22093732648.

The previous prime is 22100002103. The next prime is 22100002139. The reversal of 22100002123 is 32120000122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22100002123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22100002103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3129448 + ... + 3136501.

It is an arithmetic number, because the mean of its divisors is an integer number (5526567900).

Almost surely, 2^22100002123 is an apocalyptic number.

22100002123 is a deficient number, since it is larger than the sum of its proper divisors (6269477).

22100002123 is an equidigital number, since it uses as much as digits as its factorization.

22100002123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6269476.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 22100002123 its reverse (32120000122), we get a palindrome (54220002245).

The spelling of 22100002123 in words is "twenty-two billion, one hundred million, two thousand, one hundred twenty-three".