211122022012213 has 8 divisors (see below), whose sum is σ = 227362559476248. Its totient is φ = 194881539108864.

The previous prime is 211122022012207. The next prime is 211122022012249. The reversal of 211122022012213 is 312210220221112.

It can be written as a sum of positive squares in 4 ways, for example, as 9781803409 + 211112240208804 = 98903^2 + 14529702^2 .

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 211122022012213 - 2³³ = 211113432077621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211122022012313) 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, 5420056 + ... + 21251377.

It is an arithmetic number, because the mean of its divisors is an integer number (28420319934531).

Almost surely, 2^{211122022012213} is an apocalyptic number.

It is an amenable number.

211122022012213 is a deficient number, since it is larger than the sum of its proper divisors (16240537464035).

211122022012213 is a wasteful number, since it uses less digits than its factorization.

211122022012213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27280343.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 211122022012213 its reverse (312210220221112), we get a palindrome (523332242233325).

The spelling of 211122022012213 in words is "two hundred eleven trillion, one hundred twenty-two billion, twenty-two million, twelve thousand, two hundred thirteen".