211202111223 has 12 divisors (see below), whose sum is σ = 305372077920. Its totient is φ = 140661855936.

The previous prime is 211202111221. The next prime is 211202111231. The reversal of 211202111223 is 322111202112.

211202111223 is a `hidden beast` number, since 211 + 20 + 211 + 1 + 223 = 666.

It is not a de Polignac number, because 211202111223 - 2¹ = 211202111221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211202111196 and 211202111205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211202111221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11619711 + ... + 11637872.

It is an arithmetic number, because the mean of its divisors is an integer number (25447673160).

Almost surely, 2^211202111223 is an apocalyptic number.

211202111223 is a deficient number, since it is larger than the sum of its proper divisors (94169966697).

211202111223 is a wasteful number, since it uses less digits than its factorization.

211202111223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23258598 (or 23258595 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 211202111223 its reverse (322111202112), we get a palindrome (533313313335).

The spelling of 211202111223 in words is "two hundred eleven billion, two hundred two million, one hundred eleven thousand, two hundred twenty-three".