11212113 has 8 divisors (see below), whose sum is σ = 16308576. Its totient is φ = 6795200.

The previous prime is 11212081. The next prime is 11212127. The reversal of 11212113 is 31121211.

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 11212113 - 2⁵ = 11212081 is a prime.

It is a super-2 number, since 2×11212113² = 251422955849538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11212153) 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 7 ways as a sum of consecutive naturals, for example, 169848 + ... + 169913.

It is an arithmetic number, because the mean of its divisors is an integer number (2038572).

Almost surely, 2^11212113 is an apocalyptic number.

It is an amenable number.

11212113 is a deficient number, since it is larger than the sum of its proper divisors (5096463).

11212113 is a wasteful number, since it uses less digits than its factorization.

11212113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339775.

The product of its digits is 12, while the sum is 12.

The square root of 11212113 is about 3348.4493426062. The cubic root of 11212113 is about 223.8184181603.

Adding to 11212113 its reverse (31121211), we get a palindrome (42333324).

It can be divided in two parts, 1121211 and 3, that multiplied together give a palindrome (3363633).

The spelling of 11212113 in words is "eleven million, two hundred twelve thousand, one hundred thirteen".