211220222223 has 8 divisors (see below), whose sum is σ = 281636891568. Its totient is φ = 140808517184.

The previous prime is 211220222189. The next prime is 211220222261. The reversal of 211220222223 is 322222022112.

211220222223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 211220222223 - 2¹⁸ = 211219960079 is a prime.

It is a super-2 number, since 2×211220222223² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211220222223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211220222293) 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 7 ways as a sum of consecutive naturals, for example, 1140636 + ... + 1312817.

It is an arithmetic number, because the mean of its divisors is an integer number (35204611446).

Almost surely, 2^211220222223 is an apocalyptic number.

211220222223 is a deficient number, since it is larger than the sum of its proper divisors (70416669345).

211220222223 is a wasteful number, since it uses less digits than its factorization.

211220222223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2482153.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 211220222223 its reverse (322222022112), we get a palindrome (533442244335).

The spelling of 211220222223 in words is "two hundred eleven billion, two hundred twenty million, two hundred twenty-two thousand, two hundred twenty-three".