21283752222 has 24 divisors (see below), whose sum is σ = 46590210576. Its totient is φ = 7021443456.

The previous prime is 21283752211. The next prime is 21283752223. The reversal of 21283752222 is 22225738212.

21283752222 is a `hidden beast` number, since 2 + 128 + 3 + 7 + 522 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21283752223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6093258 + ... + 6096749.

It is an arithmetic number, because the mean of its divisors is an integer number (1941258774).

Almost surely, 2^21283752222 is an apocalyptic number.

21283752222 is an abundant number, since it is smaller than the sum of its proper divisors (25306458354).

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

21283752222 is a wasteful number, since it uses less digits than its factorization.

21283752222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12190112 (or 12190109 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The spelling of 21283752222 in words is "twenty-one billion, two hundred eighty-three million, seven hundred fifty-two thousand, two hundred twenty-two".