22321243145 has 8 divisors (see below), whose sum is σ = 27239483520. Its totient is φ = 17554333360.

The previous prime is 22321243127. The next prime is 22321243163. The reversal of 22321243145 is 54134212322.

It is an interprime number because it is at equal distance from previous prime (22321243127) and next prime (22321243163).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22321243145 - 2¹² = 22321239049 is a prime.

It is a super-3 number, since 3×22321243145³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37832321 + ... + 37832910.

It is an arithmetic number, because the mean of its divisors is an integer number (3404935440).

Almost surely, 2^22321243145 is an apocalyptic number.

It is an amenable number.

22321243145 is a deficient number, since it is larger than the sum of its proper divisors (4918240375).

22321243145 is an equidigital number, since it uses as much as digits as its factorization.

22321243145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75665295.

The product of its digits is 11520, while the sum is 29.

Adding to 22321243145 its reverse (54134212322), we get a palindrome (76455455467).

The spelling of 22321243145 in words is "twenty-two billion, three hundred twenty-one million, two hundred forty-three thousand, one hundred forty-five".