11420211 has 16 divisors (see below), whose sum is σ = 16685568. Its totient is φ = 6890400.

The previous prime is 11420203. The next prime is 11420239. The reversal of 11420211 is 11202411.

It is a happy number.

It is not a de Polignac number, because 11420211 - 2³ = 11420203 is a prime.

It is a super-4 number, since 4×11420211⁴ (a number of 29 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (11420251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8305 + ... + 9581.

It is an arithmetic number, because the mean of its divisors is an integer number (1042848).

Almost surely, 2^11420211 is an apocalyptic number.

11420211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11420211 is a deficient number, since it is larger than the sum of its proper divisors (5265357).

11420211 is a wasteful number, since it uses less digits than its factorization.

11420211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 11420211 is about 3379.3802686291. The cubic root of 11420211 is about 225.1946365192.

Adding to 11420211 its reverse (11202411), we get a palindrome (22622622).

The spelling of 11420211 in words is "eleven million, four hundred twenty thousand, two hundred eleven".