211332512213 has 4 divisors (see below), whose sum is σ = 211334934240. Its totient is φ = 211330090188.

The previous prime is 211332512207. The next prime is 211332512243. The reversal of 211332512213 is 312215233112.

211332512213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 211332512213 - 2¹² = 211332508117 is a prime.

It is a super-2 number, since 2×211332512213² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211332512243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1075043 + ... + 1256336.

It is an arithmetic number, because the mean of its divisors is an integer number (52833733560).

Almost surely, 2^211332512213 is an apocalyptic number.

It is an amenable number.

211332512213 is a deficient number, since it is larger than the sum of its proper divisors (2422027).

211332512213 is an equidigital number, since it uses as much as digits as its factorization.

211332512213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2422026.

The product of its digits is 2160, while the sum is 26.

Adding to 211332512213 its reverse (312215233112), we get a palindrome (523547745325).

The spelling of 211332512213 in words is "two hundred eleven billion, three hundred thirty-two million, five hundred twelve thousand, two hundred thirteen".