421112233 has 4 divisors (see below), whose sum is σ = 422751060. Its totient is φ = 419473408.

The previous prime is 421112227. The next prime is 421112249. The reversal of 421112233 is 332211124.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 418898089 + 2214144 = 20467^2 + 1488^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421112233 is a prime.

It is a super-3 number, since 3×421112233³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 421112233.

It is not an unprimeable number, because it can be changed into a prime (421112213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 819028 + ... + 819541.

It is an arithmetic number, because the mean of its divisors is an integer number (105687765).

Almost surely, 2^421112233 is an apocalyptic number.

It is an amenable number.

421112233 is a deficient number, since it is larger than the sum of its proper divisors (1638827).

421112233 is a wasteful number, since it uses less digits than its factorization.

421112233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638826.

The product of its digits is 288, while the sum is 19.

The square root of 421112233 is about 20521.0192972961. The cubic root of 421112233 is about 749.5477172345.

Adding to 421112233 its reverse (332211124), we get a palindrome (753323357).

It can be divided in two parts, 42111 and 2233, that added together give a palindrome (44344).

The spelling of 421112233 in words is "four hundred twenty-one million, one hundred twelve thousand, two hundred thirty-three".