11223021047 has 8 divisors (see below), whose sum is σ = 13240061952. Its totient is φ = 9309418200.

The previous prime is 11223021037. The next prime is 11223021071. The reversal of 11223021047 is 74012032211.

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

It is a cyclic number.

It is not a de Polignac number, because 11223021047 - 2¹⁸ = 11222758903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11223021037) 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, 25859279 + ... + 25859712.

It is an arithmetic number, because the mean of its divisors is an integer number (1655007744).

Almost surely, 2^11223021047 is an apocalyptic number.

11223021047 is a deficient number, since it is larger than the sum of its proper divisors (2017040905).

11223021047 is an equidigital number, since it uses as much as digits as its factorization.

11223021047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51719029.

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 11223021047 its reverse (74012032211), we get a palindrome (85235053258).

The spelling of 11223021047 in words is "eleven billion, two hundred twenty-three million, twenty-one thousand, forty-seven".