421033222 has 4 divisors (see below), whose sum is σ = 631549836. Its totient is φ = 210516610.

The previous prime is 421033213. The next prime is 421033229. The reversal of 421033222 is 222330124.

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

It is a self number, because there is not a number n which added to its sum of digits gives 421033222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421033229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105258304 + ... + 105258307.

It is an arithmetic number, because the mean of its divisors is an integer number (157887459).

Almost surely, 2^421033222 is an apocalyptic number.

421033222 is a deficient number, since it is larger than the sum of its proper divisors (210516614).

421033222 is a wasteful number, since it uses less digits than its factorization.

421033222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210516613.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 421033222 is about 20519.0940833166. The cubic root of 421033222 is about 749.5008364473.

Adding to 421033222 its reverse (222330124), we get a palindrome (643363346).

The spelling of 421033222 in words is "four hundred twenty-one million, thirty-three thousand, two hundred twenty-two".