22000212123 has 4 divisors (see below), whose sum is σ = 29333616168. Its totient is φ = 14666808080.

The previous prime is 22000212097. The next prime is 22000212131. The reversal of 22000212123 is 32121200022.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22000212123 - 2⁸ = 22000211867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22000212133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3666702018 + ... + 3666702023.

It is an arithmetic number, because the mean of its divisors is an integer number (7333404042).

Almost surely, 2^22000212123 is an apocalyptic number.

22000212123 is a deficient number, since it is larger than the sum of its proper divisors (7333404045).

22000212123 is an equidigital number, since it uses as much as digits as its factorization.

22000212123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7333404044.

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

Adding to 22000212123 its reverse (32121200022), we get a palindrome (54121412145).

The spelling of 22000212123 in words is "twenty-two billion, two hundred twelve thousand, one hundred twenty-three".