21122200001012 has 72 divisors (see below), whose sum is σ = 40917244971456. Its totient is φ = 9533106000000.

The previous prime is 21122200000999. The next prime is 21122200001033. The reversal of 21122200001012 is 21010000222112.

It is a super-2 number, since 2×21122200001012² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 164447888 + ... + 164576280.

It is an arithmetic number, because the mean of its divisors is an integer number (568295069048).

Almost surely, 2^{21122200001012} is an apocalyptic number.

21122200001012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21122200001012 is a deficient number, since it is larger than the sum of its proper divisors (19795044970444).

21122200001012 is a wasteful number, since it uses less digits than its factorization.

21122200001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130821 (or 130808 counting only the distinct ones).

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

Adding to 21122200001012 its reverse (21010000222112), we get a palindrome (42132200223124).

The spelling of 21122200001012 in words is "twenty-one trillion, one hundred twenty-two billion, two hundred million, one thousand, twelve".