22011120012 has 96 divisors (see below), whose sum is σ = 59147845120. Its totient is φ = 6240706560.

The previous prime is 22011119989. The next prime is 22011120017. The reversal of 22011120012 is 21002111022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 22011120012.

It is not an unprimeable number, because it can be changed into a prime (22011120017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6365388 + ... + 6368844.

Almost surely, 2^22011120012 is an apocalyptic number.

It is an amenable number.

22011120012 is an abundant number, since it is smaller than the sum of its proper divisors (37136725108).

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

22011120012 is a wasteful number, since it uses less digits than its factorization.

22011120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4031 (or 4029 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22011120012 its reverse (21002111022), we get a palindrome (43013231034).

The spelling of 22011120012 in words is "twenty-two billion, eleven million, one hundred twenty thousand, twelve".