11221000231 has 8 divisors (see below), whose sum is σ = 12937487904. Its totient is φ = 9532884480.

The previous prime is 11221000211. The next prime is 11221000237. The reversal of 11221000231 is 13200012211.

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

It is not a de Polignac number, because 11221000231 - 2¹¹ = 11220998183 is a prime.

It is a super-2 number, since 2×11221000231² (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 (11221000237) 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, 7092130 + ... + 7093711.

It is an arithmetic number, because the mean of its divisors is an integer number (1617185988).

Almost surely, 2^11221000231 is an apocalyptic number.

11221000231 is a deficient number, since it is larger than the sum of its proper divisors (1716487673).

11221000231 is a wasteful number, since it uses less digits than its factorization.

11221000231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14185961.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11221000231 its reverse (13200012211), we get a palindrome (24421012442).

The spelling of 11221000231 in words is "eleven billion, two hundred twenty-one million, two hundred thirty-one", and thus it is an aban number.