11133322421 has 16 divisors (see below), whose sum is σ = 12075194880. Its totient is φ = 10203916800.

The previous prime is 11133322393. The next prime is 11133322451. The reversal of 11133322421 is 12422333111.

It is a cyclic number.

It is not a de Polignac number, because 11133322421 - 2⁶ = 11133322357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11133322451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1091696 + ... + 1101846.

It is an arithmetic number, because the mean of its divisors is an integer number (754699680).

Almost surely, 2^11133322421 is an apocalyptic number.

It is an amenable number.

11133322421 is a deficient number, since it is larger than the sum of its proper divisors (941872459).

11133322421 is a wasteful number, since it uses less digits than its factorization.

11133322421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10756.

The product of its digits is 864, while the sum is 23.

Adding to 11133322421 its reverse (12422333111), we get a palindrome (23555655532).

The spelling of 11133322421 in words is "eleven billion, one hundred thirty-three million, three hundred twenty-two thousand, four hundred twenty-one".