22073142247 has 4 divisors (see below), whose sum is σ = 23771076280. Its totient is φ = 20375208216.

The previous prime is 22073142229. The next prime is 22073142271. The reversal of 22073142247 is 74224137022.

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 22073142247 - 2¹⁵ = 22073109479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22073142277) 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, 848966997 + ... + 848967022.

It is an arithmetic number, because the mean of its divisors is an integer number (5942769070).

Almost surely, 2^22073142247 is an apocalyptic number.

22073142247 is a deficient number, since it is larger than the sum of its proper divisors (1697934033).

22073142247 is a wasteful number, since it uses less digits than its factorization.

22073142247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697934032.

The product of its (nonzero) digits is 37632, while the sum is 34.

Adding to 22073142247 its reverse (74224137022), we get a palindrome (96297279269).

The spelling of 22073142247 in words is "twenty-two billion, seventy-three million, one hundred forty-two thousand, two hundred forty-seven".