421224232222 has 8 divisors (see below), whose sum is σ = 633745220472. Its totient is φ = 209975825400.

The previous prime is 421224232217. The next prime is 421224232223. The reversal of 421224232222 is 222232422124.

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

It is a super-2 number, since 2×421224232222² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421224232223) 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, 318144529 + ... + 318145852.

It is an arithmetic number, because the mean of its divisors is an integer number (79218152559).

Almost surely, 2^421224232222 is an apocalyptic number.

421224232222 is a deficient number, since it is larger than the sum of its proper divisors (212520988250).

421224232222 is a wasteful number, since it uses less digits than its factorization.

421224232222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636290714.

The product of its digits is 12288, while the sum is 28.

Adding to 421224232222 its reverse (222232422124), we get a palindrome (643456654346).

The spelling of 421224232222 in words is "four hundred twenty-one billion, two hundred twenty-four million, two hundred thirty-two thousand, two hundred twenty-two".