21222000112 has 10 divisors (see below), whose sum is σ = 41117625248. Its totient is φ = 10611000048.

The previous prime is 21222000089. The next prime is 21222000139. The reversal of 21222000112 is 21100022212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21222000092 and 21222000101.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 663187488 + ... + 663187519.

Almost surely, 2^21222000112 is an apocalyptic number.

It is an amenable number.

21222000112 is a deficient number, since it is larger than the sum of its proper divisors (19895625136).

21222000112 is a wasteful number, since it uses less digits than its factorization.

21222000112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326375015 (or 1326375009 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 21222000112 its reverse (21100022212), we get a palindrome (42322022324).

The spelling of 21222000112 in words is "twenty-one billion, two hundred twenty-two million, one hundred twelve", and thus it is an aban number.