11212004 has 6 divisors (see below), whose sum is σ = 19621014. Its totient is φ = 5606000.

The previous prime is 11212001. The next prime is 11212013. The reversal of 11212004 is 40021211.

It can be written as a sum of positive squares in only one way, i.e., 9935104 + 1276900 = 3152^2 + 1130^2 .

It is not an unprimeable number, because it can be changed into a prime (11212001) 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 as a sum of consecutive naturals, namely, 1401497 + ... + 1401504.

It is an arithmetic number, because the mean of its divisors is an integer number (3270169).

Almost surely, 2^11212004 is an apocalyptic number.

It is an amenable number.

11212004 is a deficient number, since it is larger than the sum of its proper divisors (8409010).

11212004 is a wasteful number, since it uses less digits than its factorization.

11212004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803005 (or 2803003 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 11212004 is about 3348.4330663760. The cubic root of 11212004 is about 223.8176928647.

Adding to 11212004 its reverse (40021211), we get a palindrome (51233215).

It can be divided in two parts, 1121 and 2004, that added together give a 5-th power (3125 = 5⁵).

The spelling of 11212004 in words is "eleven million, two hundred twelve thousand, four".