22143433212 has 24 divisors (see below), whose sum is σ = 57408901200. Its totient is φ = 7381144368.

The previous prime is 22143433187. The next prime is 22143433243. The reversal of 22143433212 is 21233434122.

22143433212 is a `hidden beast` number, since 2 + 2 + 14 + 3 + 433 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102515787 + ... + 102516002.

It is an arithmetic number, because the mean of its divisors is an integer number (2392037550).

Almost surely, 2^22143433212 is an apocalyptic number.

It is an amenable number.

22143433212 is an abundant number, since it is smaller than the sum of its proper divisors (35265467988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22143433212 is a wasteful number, since it uses less digits than its factorization.

22143433212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205031802 (or 205031794 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

Adding to 22143433212 its reverse (21233434122), we get a palindrome (43376867334).

The spelling of 22143433212 in words is "twenty-two billion, one hundred forty-three million, four hundred thirty-three thousand, two hundred twelve".