211313122 has 8 divisors (see below), whose sum is σ = 317745900. Its totient is φ = 105397824.

The previous prime is 211313101. The next prime is 211313129. The reversal of 211313122 is 221313112.

It can be written as a sum of positive squares in 2 ways, for example, as 188760121 + 22553001 = 13739^2 + 4749^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 211313096 and 211313105.

It is not an unprimeable number, because it can be changed into a prime (211313129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128347 + ... + 129982.

Almost surely, 2^211313122 is an apocalyptic number.

211313122 is a deficient number, since it is larger than the sum of its proper divisors (106432778).

211313122 is a wasteful number, since it uses less digits than its factorization.

211313122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258740.

The product of its digits is 72, while the sum is 16.

The square root of 211313122 is about 14536.6131543768. The cubic root of 211313122 is about 595.6285258544.

Adding to 211313122 its reverse (221313112), we get a palindrome (432626234).

The spelling of 211313122 in words is "two hundred eleven million, three hundred thirteen thousand, one hundred twenty-two".