211233121422 has 16 divisors (see below), whose sum is σ = 422501771520. Its totient is φ = 70405119032.

The previous prime is 211233121417. The next prime is 211233121447. The reversal of 211233121422 is 224121332112.

211233121422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 211233121392 and 211233121401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1402758 + ... + 1546025.

It is an arithmetic number, because the mean of its divisors is an integer number (26406360720).

Almost surely, 2^211233121422 is an apocalyptic number.

211233121422 is an abundant number, since it is smaller than the sum of its proper divisors (211268650098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211233121422 is a wasteful number, since it uses less digits than its factorization.

211233121422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2960727.

The product of its digits is 1152, while the sum is 24.

Adding to 211233121422 its reverse (224121332112), we get a palindrome (435354453534).

The spelling of 211233121422 in words is "two hundred eleven billion, two hundred thirty-three million, one hundred twenty-one thousand, four hundred twenty-two".