213111032211 has 96 divisors (see below), whose sum is σ = 401213606400. Its totient is φ = 110552420160.

The previous prime is 213111032209. The next prime is 213111032221. The reversal of 213111032211 is 112230111312.

213111032211 is a `hidden beast` number, since 21 + 311 + 1 + 0 + 322 + 11 = 666.

It is not a de Polignac number, because 213111032211 - 2¹ = 213111032209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213111032221) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10803025 + ... + 10822733.

It is an arithmetic number, because the mean of its divisors is an integer number (4179308400).

Almost surely, 2^213111032211 is an apocalyptic number.

213111032211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

213111032211 is a deficient number, since it is larger than the sum of its proper divisors (188102574189).

213111032211 is a wasteful number, since it uses less digits than its factorization.

213111032211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20486 (or 20473 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 213111032211 its reverse (112230111312), we get a palindrome (325341143523).

The spelling of 213111032211 in words is "two hundred thirteen billion, one hundred eleven million, thirty-two thousand, two hundred eleven".