201111213422 has 24 divisors (see below), whose sum is σ = 350967807720. Its totient is φ = 86178420720.

The previous prime is 201111213379. The next prime is 201111213431. The reversal of 201111213422 is 224312111102.

It is a junction number, because it is equal to n+sod(n) for n = 201111213394 and 201111213403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 575897 + ... + 856667.

It is an arithmetic number, because the mean of its divisors is an integer number (14623658655).

Almost surely, 2^201111213422 is an apocalyptic number.

201111213422 is a deficient number, since it is larger than the sum of its proper divisors (149856594298).

201111213422 is a wasteful number, since it uses less digits than its factorization.

201111213422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288096 (or 288089 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 201111213422 its reverse (224312111102), we get a palindrome (425423324524).

The spelling of 201111213422 in words is "two hundred one billion, one hundred eleven million, two hundred thirteen thousand, four hundred twenty-two".