22012000012 has 6 divisors (see below), whose sum is σ = 38521000028. Its totient is φ = 11006000004.

The previous prime is 22011999983. The next prime is 22012000037. The reversal of 22012000012 is 21000021022.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2751499998 + ... + 2751500005.

Almost surely, 2^22012000012 is an apocalyptic number.

It is an amenable number.

22012000012 is a deficient number, since it is larger than the sum of its proper divisors (16509000016).

22012000012 is a wasteful number, since it uses less digits than its factorization.

22012000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5503000007 (or 5503000005 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 22012000012 its reverse (21000021022), we get a palindrome (43012021034).

The spelling of 22012000012 in words is "twenty-two billion, twelve million, twelve", and thus it is an aban number and an uban number.