22111200001012 has 12 divisors (see below), whose sum is σ = 38794071983940. Its totient is φ = 11027179434176.

The previous prime is 22111200000853. The next prime is 22111200001039. The reversal of 22111200001012 is 21010000211122.

It can be written as a sum of positive squares in 2 ways, for example, as 4499379138276 + 17611820862736 = 2121174^2 + 4196644^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22111200000983 and 22111200001001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7105139833 + ... + 7105142944.

It is an arithmetic number, because the mean of its divisors is an integer number (3232839331995).

Almost surely, 2^{22111200001012} is an apocalyptic number.

It is an amenable number.

22111200001012 is a deficient number, since it is larger than the sum of its proper divisors (16682871982928).

22111200001012 is a wasteful number, since it uses less digits than its factorization.

22111200001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14210283170 (or 14210283168 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22111200001012 its reverse (21010000211122), we get a palindrome (43121200212134).

The spelling of 22111200001012 in words is "twenty-two trillion, one hundred eleven billion, two hundred million, one thousand, twelve".