211102212123 has 16 divisors (see below), whose sum is σ = 341175292800. Its totient is φ = 127940734440.

The previous prime is 211102212119. The next prime is 211102212133. The reversal of 211102212123 is 321212201112.

It is not a de Polignac number, because 211102212123 - 2² = 211102212119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211102212096 and 211102212105.

It is not an unprimeable number, because it can be changed into a prime (211102212133) 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, 355390633 + ... + 355391226.

It is an arithmetic number, because the mean of its divisors is an integer number (21323455800).

Almost surely, 2^211102212123 is an apocalyptic number.

211102212123 is a deficient number, since it is larger than the sum of its proper divisors (130073080677).

211102212123 is a wasteful number, since it uses less digits than its factorization.

211102212123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710781879 (or 710781873 counting only the distinct ones).

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

Adding to 211102212123 its reverse (321212201112), we get a palindrome (532314413235).

The spelling of 211102212123 in words is "two hundred eleven billion, one hundred two million, two hundred twelve thousand, one hundred twenty-three".