22751216123 has 4 divisors (see below), whose sum is σ = 22751601840. Its totient is φ = 22750830408.

The previous prime is 22751216087. The next prime is 22751216143. The reversal of 22751216123 is 32161215722.

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 22751216123 - 2¹⁰ = 22751215099 is a prime.

It is a super-2 number, since 2×22751216123² (a number of 22 digits) contains 22 as substring.

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 22751216123.

It is not an unprimeable number, because it can be changed into a prime (22751216143) 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, 83840 + ... + 229197.

It is an arithmetic number, because the mean of its divisors is an integer number (5687900460).

Almost surely, 2^22751216123 is an apocalyptic number.

22751216123 is a deficient number, since it is larger than the sum of its proper divisors (385717).

22751216123 is an equidigital number, since it uses as much as digits as its factorization.

22751216123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385716.

The product of its digits is 10080, while the sum is 32.

The spelling of 22751216123 in words is "twenty-two billion, seven hundred fifty-one million, two hundred sixteen thousand, one hundred twenty-three".