11104221531 has 16 divisors (see below), whose sum is σ = 15998957856. Its totient is φ = 6810038016.

The previous prime is 11104221529. The next prime is 11104221553. The reversal of 11104221531 is 13512240111.

It is not a de Polignac number, because 11104221531 - 2¹ = 11104221529 is a prime.

It is a super-2 number, since 2×11104221531² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11104221498 and 11104221507.

It is not an unprimeable number, because it can be changed into a prime (11104221521) 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, 474450 + ... + 497303.

It is an arithmetic number, because the mean of its divisors is an integer number (999934866).

Almost surely, 2^11104221531 is an apocalyptic number.

11104221531 is a deficient number, since it is larger than the sum of its proper divisors (4894736325).

11104221531 is a wasteful number, since it uses less digits than its factorization.

11104221531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972062.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 11104221531 its reverse (13512240111), we get a palindrome (24616461642).

The spelling of 11104221531 in words is "eleven billion, one hundred four million, two hundred twenty-one thousand, five hundred thirty-one".