4021430143220 has 24 divisors (see below), whose sum is σ = 9651432344064. Its totient is φ = 1378776049056.

The previous prime is 4021430143201. The next prime is 4021430143243. The reversal of 4021430143220 is 223410341204.

It is a self number, because there is not a number n which added to its sum of digits gives 4021430143220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14362250372 + ... + 14362250651.

It is an arithmetic number, because the mean of its divisors is an integer number (402143014336).

Almost surely, 2^{4021430143220} is an apocalyptic number.

It is an amenable number.

4021430143220 is an abundant number, since it is smaller than the sum of its proper divisors (5630002200844).

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

4021430143220 is a wasteful number, since it uses less digits than its factorization.

4021430143220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28724501039 (or 28724501037 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 4021430143220 its reverse (223410341204), we get a palindrome (4244840484424).

The spelling of 4021430143220 in words is "four trillion, twenty-one billion, four hundred thirty million, one hundred forty-three thousand, two hundred twenty".