981210101212211 has 16 divisors (see below), whose sum is σ = 1138199483043840. Its totient is φ = 838405869190560.

The previous prime is 981210101212171. The next prime is 981210101212261. The reversal of 981210101212211 is 112212101012189.

It is a cyclic number.

It is not a de Polignac number, because 981210101212211 - 2⁶ = 981210101212147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (981210101212261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52929654191 + ... + 52929672728.

It is an arithmetic number, because the mean of its divisors is an integer number (71137467690240).

Almost surely, 2^{981210101212211} is an apocalyptic number.

981210101212211 is a deficient number, since it is larger than the sum of its proper divisors (156989381831629).

981210101212211 is a wasteful number, since it uses less digits than its factorization.

981210101212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105859326986.

The product of its (nonzero) digits is 1152, while the sum is 32.

The spelling of 981210101212211 in words is "nine hundred eighty-one trillion, two hundred ten billion, one hundred one million, two hundred twelve thousand, two hundred eleven".