4223221432420 has 24 divisors (see below), whose sum is σ = 8879489063424. Its totient is φ = 1687245895776.

The previous prime is 4223221432403. The next prime is 4223221432421. The reversal of 4223221432420 is 242341223224.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4223221432421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127650372 + ... + 127683451.

It is an arithmetic number, because the mean of its divisors is an integer number (369978710976).

Almost surely, 2^{4223221432420} is an apocalyptic number.

It is an amenable number.

4223221432420 is an abundant number, since it is smaller than the sum of its proper divisors (4656267631004).

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

4223221432420 is a wasteful number, since it uses less digits than its factorization.

4223221432420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255334659 (or 255334657 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 4223221432420 its reverse (242341223224), we get a palindrome (4465562655644).

The spelling of 4223221432420 in words is "four trillion, two hundred twenty-three billion, two hundred twenty-one million, four hundred thirty-two thousand, four hundred twenty".