22000212112 has 20 divisors (see below), whose sum is σ = 42640780860. Its totient is φ = 10996139648.

The previous prime is 22000212097. The next prime is 22000212131. The reversal of 22000212112 is 21121200022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15636001936 + 6364210176 = 125044^2 + 79776^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22000212092 and 22000212101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201883 + ... + 291130.

It is an arithmetic number, because the mean of its divisors is an integer number (2132039043).

Almost surely, 2^22000212112 is an apocalyptic number.

It is an amenable number.

22000212112 is a deficient number, since it is larger than the sum of its proper divisors (20640568748).

22000212112 is a wasteful number, since it uses less digits than its factorization.

22000212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495810 (or 495804 counting only the distinct ones).

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

Adding to 22000212112 its reverse (21121200022), we get a palindrome (43121412134).

The spelling of 22000212112 in words is "twenty-two billion, two hundred twelve thousand, one hundred twelve".