921210100000211 has 8 divisors (see below), whose sum is σ = 1052813066826240. Its totient is φ = 789607514166408.

The previous prime is 921210100000199. The next prime is 921210100000217. The reversal of 921210100000211 is 112000001012129.

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

It is not a de Polignac number, because 921210100000211 - 2³⁰ = 921209026258387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (921210100000217) 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, 90047861 + ... + 99754886.

It is an arithmetic number, because the mean of its divisors is an integer number (131601633353280).

Almost surely, 2^{921210100000211} is an apocalyptic number.

921210100000211 is a deficient number, since it is larger than the sum of its proper divisors (131602966826029).

921210100000211 is a wasteful number, since it uses less digits than its factorization.

921210100000211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190496113.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 921210100000211 in words is "nine hundred twenty-one trillion, two hundred ten billion, one hundred million, two hundred eleven", and thus it is an aban number.