11221103231 has 8 divisors (see below), whose sum is σ = 12172473264. Its totient is φ = 10282334400.

The previous prime is 11221103221. The next prime is 11221103233. The reversal of 11221103231 is 13230112211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11221103231 - 2⁶ = 11221103167 is a prime.

It is a super-2 number, since 2×11221103231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221103233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3148445 + ... + 3152006.

It is an arithmetic number, because the mean of its divisors is an integer number (1521559158).

Almost surely, 2^11221103231 is an apocalyptic number.

11221103231 is a deficient number, since it is larger than the sum of its proper divisors (951370033).

11221103231 is a wasteful number, since it uses less digits than its factorization.

11221103231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6300601.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11221103231 its reverse (13230112211), we get a palindrome (24451215442).

The spelling of 11221103231 in words is "eleven billion, two hundred twenty-one million, one hundred three thousand, two hundred thirty-one".