22012011212 has 12 divisors (see below), whose sum is σ = 38722701696. Its totient is φ = 10948382160.

The previous prime is 22012011199. The next prime is 22012011313. The reversal of 22012011212 is 21211021022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14405003 + ... + 14406530.

It is an arithmetic number, because the mean of its divisors is an integer number (3226891808).

Almost surely, 2^22012011212 is an apocalyptic number.

It is an amenable number.

22012011212 is a deficient number, since it is larger than the sum of its proper divisors (16710690484).

22012011212 is a wasteful number, since it uses less digits than its factorization.

22012011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28811728 (or 28811726 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22012011212 its reverse (21211021022), we get a palindrome (43223032234).

The spelling of 22012011212 in words is "twenty-two billion, twelve million, eleven thousand, two hundred twelve".