11221302404 has 72 divisors (see below), whose sum is σ = 22690500168. Its totient is φ = 4825497600.

The previous prime is 11221302401. The next prime is 11221302413. The reversal of 11221302404 is 40420312211.

It can be written as a sum of positive squares in 12 ways, for example, as 380328004 + 10840974400 = 19502^2 + 104120^2 .

It is a super-3 number, since 3×11221302404³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221302401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1514132 + ... + 1521524.

Almost surely, 2^11221302404 is an apocalyptic number.

It is an amenable number.

11221302404 is an abundant number, since it is smaller than the sum of its proper divisors (11469197764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11221302404 is a wasteful number, since it uses less digits than its factorization.

11221302404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7545 (or 7526 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11221302404 its reverse (40420312211), we get a palindrome (51641614615).

The spelling of 11221302404 in words is "eleven billion, two hundred twenty-one million, three hundred two thousand, four hundred four".