421111223 has 8 divisors (see below), whose sum is σ = 468134016. Its totient is φ = 376178400.

The previous prime is 421111217. The next prime is 421111279. The reversal of 421111223 is 322111124.

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

It is not a de Polignac number, because 421111223 - 2⁸ = 421110967 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 (421111213) 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, 522068 + ... + 522873.

It is an arithmetic number, because the mean of its divisors is an integer number (58516752).

Almost surely, 2^421111223 is an apocalyptic number.

421111223 is a deficient number, since it is larger than the sum of its proper divisors (47022793).

421111223 is a wasteful number, since it uses less digits than its factorization.

421111223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044985.

The product of its digits is 96, while the sum is 17.

The square root of 421111223 is about 20520.9946883673. The cubic root of 421111223 is about 749.5471179930.

Adding to 421111223 its reverse (322111124), we get a palindrome (743222347).

Subtracting from 421111223 its reverse (322111124), we obtain a palindrome (99000099).

It can be divided in two parts, 42111 and 1223, that added together give a palindrome (43334).

The spelling of 421111223 in words is "four hundred twenty-one million, one hundred eleven thousand, two hundred twenty-three".