22000222012 has 12 divisors (see below), whose sum is σ = 38501769600. Its totient is φ = 10999716416.

The previous prime is 22000222007. The next prime is 22000222031. The reversal of 22000222012 is 21022200022.

It is a junction number, because it is equal to n+sod(n) for n = 22000221983 and 22000222001.

It is a congruent number.

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, 52548 + ... + 216244.

It is an arithmetic number, because the mean of its divisors is an integer number (3208480800).

Almost surely, 2^22000222012 is an apocalyptic number.

It is an amenable number.

22000222012 is a deficient number, since it is larger than the sum of its proper divisors (16501547588).

22000222012 is a wasteful number, since it uses less digits than its factorization.

22000222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197300 (or 197298 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 22000222012 its reverse (21022200022), we get a palindrome (43022422034).

The spelling of 22000222012 in words is "twenty-two billion, two hundred twenty-two thousand, twelve".