13770211 has 12 divisors (see below), whose sum is σ = 16991632. Its totient is φ = 10867104.

The previous prime is 13770199. The next prime is 13770233. The reversal of 13770211 is 11207731.

13770211 = T₁₄₄₉ + T₁₄₅₀ + ... + T₁₄₆₁.

It is not a de Polignac number, because 13770211 - 2¹¹ = 13768163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13770241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35205 + ... + 35593.

Almost surely, 2^13770211 is an apocalyptic number.

13770211 is a deficient number, since it is larger than the sum of its proper divisors (3221421).

13770211 is an frugal number, since it uses more digits than its factorization.

13770211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 294, while the sum is 22.

The square root of 13770211 is about 3710.8234935119. The cubic root of 13770211 is about 239.6883164624.

Adding to 13770211 its reverse (11207731), we get a palindrome (24977942).

The spelling of 13770211 in words is "thirteen million, seven hundred seventy thousand, two hundred eleven".