22143122231251 has 96 divisors (see below), whose sum is σ = 27558703094400. Its totient is φ = 17700741273600.

The previous prime is 22143122231239. The next prime is 22143122231267. The reversal of 22143122231251 is 15213222134122.

It is not a de Polignac number, because 22143122231251 - 2¹⁷ = 22143122100179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22143122231231) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5705517831 + ... + 5705521711.

It is an arithmetic number, because the mean of its divisors is an integer number (287069823900).

Almost surely, 2^{22143122231251} is an apocalyptic number.

22143122231251 is a deficient number, since it is larger than the sum of its proper divisors (5415580863149).

22143122231251 is a wasteful number, since it uses less digits than its factorization.

22143122231251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4685 (or 4678 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

Adding to 22143122231251 its reverse (15213222134122), we get a palindrome (37356344365373).

The spelling of 22143122231251 in words is "twenty-two trillion, one hundred forty-three billion, one hundred twenty-two million, two hundred thirty-one thousand, two hundred fifty-one".