421224444412 has 6 divisors (see below), whose sum is σ = 737142777728. Its totient is φ = 210612222204.

The previous prime is 421224444401. The next prime is 421224444413. The reversal of 421224444412 is 214444422124.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421224444413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52653055548 + ... + 52653055555.

Almost surely, 2^421224444412 is an apocalyptic number.

It is an amenable number.

421224444412 is a deficient number, since it is larger than the sum of its proper divisors (315918333316).

421224444412 is a wasteful number, since it uses less digits than its factorization.

421224444412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105306111107 (or 105306111105 counting only the distinct ones).

The product of its digits is 65536, while the sum is 34.

Adding to 421224444412 its reverse (214444422124), we get a palindrome (635668866536).

The spelling of 421224444412 in words is "four hundred twenty-one billion, two hundred twenty-four million, four hundred forty-four thousand, four hundred twelve".