211100011223 has 16 divisors (see below), whose sum is σ = 224104320000. Its totient is φ = 198161252352.

The previous prime is 211100011219. The next prime is 211100011229. The reversal of 211100011223 is 322110001112.

It is not a de Polignac number, because 211100011223 - 2² = 211100011219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211100011198 and 211100011207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211100011229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29986538 + ... + 29993576.

It is an arithmetic number, because the mean of its divisors is an integer number (14006520000).

Almost surely, 2^211100011223 is an apocalyptic number.

211100011223 is a deficient number, since it is larger than the sum of its proper divisors (13004308777).

211100011223 is a wasteful number, since it uses less digits than its factorization.

211100011223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11434.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 211100011223 its reverse (322110001112), we get a palindrome (533210012335).

The spelling of 211100011223 in words is "two hundred eleven billion, one hundred million, eleven thousand, two hundred twenty-three".