22222143243 has 24 divisors (see below), whose sum is σ = 33966017280. Its totient is φ = 13971046320.

The previous prime is 22222143241. The next prime is 22222143257. The reversal of 22222143243 is 34234122222.

22222143243 is a `hidden beast` number, since 2 + 2 + 2 + 221 + 432 + 4 + 3 = 666.

It is not a de Polignac number, because 22222143243 - 2¹ = 22222143241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22222143241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 741313 + ... + 770706.

It is an arithmetic number, because the mean of its divisors is an integer number (1415250720).

Almost surely, 2^22222143243 is an apocalyptic number.

22222143243 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22222143243 is a deficient number, since it is larger than the sum of its proper divisors (11743874037).

22222143243 is a wasteful number, since it uses less digits than its factorization.

22222143243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512119 (or 1512116 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

Adding to 22222143243 its reverse (34234122222), we get a palindrome (56456265465).

The spelling of 22222143243 in words is "twenty-two billion, two hundred twenty-two million, one hundred forty-three thousand, two hundred forty-three".