131122211 has 8 divisors (see below), whose sum is σ = 150571200. Its totient is φ = 112928040.

The previous prime is 131122181. The next prime is 131122247. The reversal of 131122211 is 112221131.

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

It is a cyclic number.

It is not a de Polignac number, because 131122211 - 2¹⁴ = 131105827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131122261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313481 + ... + 313898.

It is an arithmetic number, because the mean of its divisors is an integer number (18821400).

Almost surely, 2^131122211 is an apocalyptic number.

131122211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131122211 is a deficient number, since it is larger than the sum of its proper divisors (19448989).

131122211 is a wasteful number, since it uses less digits than its factorization.

131122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627409.

The product of its digits is 24, while the sum is 14.

The square root of 131122211 is about 11450.8607100078. The cubic root of 131122211 is about 508.0331924392.

Adding to 131122211 its reverse (112221131), we get a palindrome (243343342).

The spelling of 131122211 in words is "one hundred thirty-one million, one hundred twenty-two thousand, two hundred eleven".