211420022223 has 8 divisors (see below), whose sum is σ = 283063045936. Its totient is φ = 140361840000.

The previous prime is 211420022221. The next prime is 211420022237. The reversal of 211420022223 is 322220024112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211420022223 - 2¹ = 211420022221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211420022223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211420022221) 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, 146209528 + ... + 146210973.

It is an arithmetic number, because the mean of its divisors is an integer number (35382880742).

Almost surely, 2^211420022223 is an apocalyptic number.

211420022223 is a deficient number, since it is larger than the sum of its proper divisors (71643023713).

211420022223 is a wasteful number, since it uses less digits than its factorization.

211420022223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292420745.

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

Adding to 211420022223 its reverse (322220024112), we get a palindrome (533640046335).

The spelling of 211420022223 in words is "two hundred eleven billion, four hundred twenty million, twenty-two thousand, two hundred twenty-three".