21002211000211 has 8 divisors (see below), whose sum is σ = 25414440202080. Its totient is φ = 16942960134528.

The previous prime is 21002211000181. The next prime is 21002211000229. The reversal of 21002211000211 is 11200011220012.

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

It is a cyclic number.

It is not a de Polignac number, because 21002211000211 - 2⁵ = 21002211000179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21002211000191 and 21002211000200.

It is not an unprimeable number, because it can be changed into a prime (21002211000311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88244583916 + ... + 88244584153.

It is an arithmetic number, because the mean of its divisors is an integer number (3176805025260).

Almost surely, 2^{21002211000211} is an apocalyptic number.

21002211000211 is a deficient number, since it is larger than the sum of its proper divisors (4412229201869).

21002211000211 is a wasteful number, since it uses less digits than its factorization.

21002211000211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176489168093.

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

Adding to 21002211000211 its reverse (11200011220012), we get a palindrome (32202222220223).

The spelling of 21002211000211 in words is "twenty-one trillion, two billion, two hundred eleven million, two hundred eleven", and thus it is an aban number.