11420221223 has 32 divisors (see below), whose sum is σ = 12636684288. Its totient is φ = 10273766400.

The previous prime is 11420221217. The next prime is 11420221231. The reversal of 11420221223 is 32212202411.

It is not a de Polignac number, because 11420221223 - 2⁴ = 11420221207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11420221195 and 11420221204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11420221243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26496818 + ... + 26497248.

It is an arithmetic number, because the mean of its divisors is an integer number (394896384).

Almost surely, 2^11420221223 is an apocalyptic number.

11420221223 is a deficient number, since it is larger than the sum of its proper divisors (1216463065).

11420221223 is a wasteful number, since it uses less digits than its factorization.

11420221223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11420221223 its reverse (32212202411), we get a palindrome (43632423634).

The spelling of 11420221223 in words is "eleven billion, four hundred twenty million, two hundred twenty-one thousand, two hundred twenty-three".