21011200000022 has 8 divisors (see below), whose sum is σ = 32533470967872. Its totient is φ = 10166709677400.

The previous prime is 21011200000019. The next prime is 21011200000031. The reversal of 21011200000022 is 22000000211012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21011199999949 and 21011200000012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169445161229 + ... + 169445161352.

It is an arithmetic number, because the mean of its divisors is an integer number (4066683870984).

Almost surely, 2^{21011200000022} is an apocalyptic number.

21011200000022 is a deficient number, since it is larger than the sum of its proper divisors (11522270967850).

21011200000022 is a wasteful number, since it uses less digits than its factorization.

21011200000022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338890322614.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 21011200000022 its reverse (22000000211012), we get a palindrome (43011200211034).

The spelling of 21011200000022 in words is "twenty-one trillion, eleven billion, two hundred million, twenty-two", and thus it is an aban number.