211212441223 has 16 divisors (see below), whose sum is σ = 241645789504. Its totient is φ = 180844254720.

The previous prime is 211212441221. The next prime is 211212441247. The reversal of 211212441223 is 322144212112.

211212441223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 211212441223 - 2¹ = 211212441221 is a prime.

It is a super-2 number, since 2×211212441223² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211212441221) 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 15 ways as a sum of consecutive naturals, for example, 36281653 + ... + 36287473.

It is an arithmetic number, because the mean of its divisors is an integer number (15102861844).

Almost surely, 2^211212441223 is an apocalyptic number.

211212441223 is a deficient number, since it is larger than the sum of its proper divisors (30433348281).

211212441223 is a wasteful number, since it uses less digits than its factorization.

211212441223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10522.

The product of its digits is 1536, while the sum is 25.

Adding to 211212441223 its reverse (322144212112), we get a palindrome (533356653335).

The spelling of 211212441223 in words is "two hundred eleven billion, two hundred twelve million, four hundred forty-one thousand, two hundred twenty-three".