211121111210326 has 4 divisors (see below), whose sum is σ = 316681666815492. Its totient is φ = 105560555605162.

The previous prime is 211121111210213. The next prime is 211121111210327. The reversal of 211121111210326 is 623012111121112.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 211121111210326.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211121111210327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52780277802580 + ... + 52780277802583.

It is an arithmetic number, because the mean of its divisors is an integer number (79170416703873).

Almost surely, 2^{211121111210326} is an apocalyptic number.

211121111210326 is a deficient number, since it is larger than the sum of its proper divisors (105560555605166).

211121111210326 is a wasteful number, since it uses less digits than its factorization.

211121111210326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105560555605165.

The product of its (nonzero) digits is 288, while the sum is 25.

Adding to 211121111210326 its reverse (623012111121112), we get a palindrome (834133222331438).

The spelling of 211121111210326 in words is "two hundred eleven trillion, one hundred twenty-one billion, one hundred eleven million, two hundred ten thousand, three hundred twenty-six".