22202112012 has 12 divisors (see below), whose sum is σ = 51804928056. Its totient is φ = 7400704000.

The previous prime is 22202111999. The next prime is 22202112017. The reversal of 22202112012 is 21021120222.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 22202111982 and 22202112000.

It is not an unprimeable number, because it can be changed into a prime (22202112017) 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, 925087989 + ... + 925088012.

It is an arithmetic number, because the mean of its divisors is an integer number (4317077338).

Almost surely, 2^22202112012 is an apocalyptic number.

It is an amenable number.

22202112012 is an abundant number, since it is smaller than the sum of its proper divisors (29602816044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22202112012 is a wasteful number, since it uses less digits than its factorization.

22202112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1850176008 (or 1850176006 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22202112012 its reverse (21021120222), we get a palindrome (43223232234).

The spelling of 22202112012 in words is "twenty-two billion, two hundred two million, one hundred twelve thousand, twelve".