22100000012 has 6 divisors (see below), whose sum is σ = 38675000028. Its totient is φ = 11050000004.

The previous prime is 22100000003. The next prime is 22100000029. The reversal of 22100000012 is 21000000122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2762499998 + ... + 2762500005.

It is an arithmetic number, because the mean of its divisors is an integer number (6445833338).

Almost surely, 2^22100000012 is an apocalyptic number.

It is an amenable number.

22100000012 is a deficient number, since it is larger than the sum of its proper divisors (16575000016).

22100000012 is a wasteful number, since it uses less digits than its factorization.

22100000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5525000007 (or 5525000005 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 22100000012 its reverse (21000000122), we get a palindrome (43100000134).

It can be divided in two parts, 2 and 2100000012, that multiplied together give a palindrome (4200000024).

The spelling of 22100000012 in words is "twenty-two billion, one hundred million, twelve", and thus it is an aban number.