11212481 has 4 divisors (see below), whose sum is σ = 12814272. Its totient is φ = 9610692.

The previous prime is 11212447. The next prime is 11212501. The reversal of 11212481 is 18421211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18421211 = 1499 ⋅12289.

It is not a de Polignac number, because 11212481 - 2¹⁰ = 11211457 is a prime.

It is a super-2 number, since 2×11212481² = 251439460350722, which contains 22 as substring.

It is a pancake number, because a pancake can be divided into 11212481 parts by 4735 straight cuts.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11212081) 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 3 ways as a sum of consecutive naturals, for example, 800885 + ... + 800898.

It is an arithmetic number, because the mean of its divisors is an integer number (3203568).

Almost surely, 2^11212481 is an apocalyptic number.

It is an amenable number.

11212481 is a deficient number, since it is larger than the sum of its proper divisors (1601791).

11212481 is an equidigital number, since it uses as much as digits as its factorization.

11212481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601790.

The product of its digits is 128, while the sum is 20.

The square root of 11212481 is about 3348.5042929642. The cubic root of 11212481 is about 223.8208668297.

Adding to 11212481 its reverse (18421211), we get a palindrome (29633692).

The spelling of 11212481 in words is "eleven million, two hundred twelve thousand, four hundred eighty-one".