21100001000222 has 8 divisors (see below), whose sum is σ = 31675712309472. Its totient is φ = 10541430230400.

The previous prime is 21100001000149. The next prime is 21100001000237. The reversal of 21100001000222 is 22200010000112.

It is a happy number.

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

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, 4285131779 + ... + 4285136702.

It is an arithmetic number, because the mean of its divisors is an integer number (3959464038684).

Almost surely, 2^{21100001000222} is an apocalyptic number.

21100001000222 is a deficient number, since it is larger than the sum of its proper divisors (10575711309250).

21100001000222 is a wasteful number, since it uses less digits than its factorization.

21100001000222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8570269714.

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

Adding to 21100001000222 its reverse (22200010000112), we get a palindrome (43300011000334).

The spelling of 21100001000222 in words is "twenty-one trillion, one hundred billion, one million, two hundred twenty-two", and thus it is an aban number.