22012122220012 has 12 divisors (see below), whose sum is σ = 38527865836096. Its totient is φ = 11004160552560.

The previous prime is 22012122220009. The next prime is 22012122220019. The reversal of 22012122220012 is 21002222121022.

It is not an unprimeable number, because it can be changed into a prime (22012122220019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475113303 + ... + 475159630.

Almost surely, 2^{22012122220012} is an apocalyptic number.

It is an amenable number.

22012122220012 is a deficient number, since it is larger than the sum of its proper divisors (16515743616084).

22012122220012 is a wasteful number, since it uses less digits than its factorization.

22012122220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950278728 (or 950278726 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22012122220012 its reverse (21002222121022), we get a palindrome (43014344341034).

The spelling of 22012122220012 in words is "twenty-two trillion, twelve billion, one hundred twenty-two million, two hundred twenty thousand, twelve".