421222230 has 192 divisors, whose sum is σ = 1343526912. Its totient is φ = 90097920.

The previous prime is 421222213. The next prime is 421222231. The reversal of 421222230 is 32222124.

421222230 is a `hidden beast` number, since 421 + 22 + 223 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421222231) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 295299 + ... + 296721.

It is an arithmetic number, because the mean of its divisors is an integer number (6997536).

Almost surely, 2^421222230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421222230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (671763456).

421222230 is an abundant number, since it is smaller than the sum of its proper divisors (922304682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421222230 is a wasteful number, since it uses less digits than its factorization.

421222230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483 (or 1480 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 421222230 is about 20523.6992279657. The cubic root of 421222230 is about 749.6129736485.

Adding to 421222230 its reverse (32222124), we get a palindrome (453444354).

The spelling of 421222230 in words is "four hundred twenty-one million, two hundred twenty-two thousand, two hundred thirty".