22012201012 has 12 divisors (see below), whose sum is σ = 38674825056. Its totient is φ = 10962251000.

The previous prime is 22012200983. The next prime is 22012201019. The reversal of 22012201012 is 21010221022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22012200983 and 22012201001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012201019) by changing a digit.

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, 10961248 + ... + 10963255.

It is an arithmetic number, because the mean of its divisors is an integer number (3222902088).

Almost surely, 2^22012201012 is an apocalyptic number.

It is an amenable number.

22012201012 is a deficient number, since it is larger than the sum of its proper divisors (16662624044).

22012201012 is a wasteful number, since it uses less digits than its factorization.

22012201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21924758 (or 21924756 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22012201012 its reverse (21010221022), we get a palindrome (43022422034).

The spelling of 22012201012 in words is "twenty-two billion, twelve million, two hundred one thousand, twelve".