211131422 has 8 divisors (see below), whose sum is σ = 321157872. Its totient is φ = 104078800.

The previous prime is 211131413. The next prime is 211131451. The reversal of 211131422 is 224131112.

211131422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 211131422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 743279 + ... + 743562.

It is an arithmetic number, because the mean of its divisors is an integer number (40144734).

Almost surely, 2^211131422 is an apocalyptic number.

211131422 is a deficient number, since it is larger than the sum of its proper divisors (110026450).

211131422 is a wasteful number, since it uses less digits than its factorization.

211131422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486914.

The product of its digits is 96, while the sum is 17.

The square root of 211131422 is about 14530.3620739471. The cubic root of 211131422 is about 595.4577575704.

Adding to 211131422 its reverse (224131112), we get a palindrome (435262534).

It can be divided in two parts, 2111 and 31422, that added together give a palindrome (33533).

The spelling of 211131422 in words is "two hundred eleven million, one hundred thirty-one thousand, four hundred twenty-two".