4021223420000 has 480 divisors, whose sum is σ = 10487007758304. Its totient is φ = 1515571200000.

The previous prime is 4021223419991. The next prime is 4021223420051. The reversal of 4021223420000 is 243221204.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2911819310 + ... + 2911820690.

Almost surely, 2^{4021223420000} is an apocalyptic number.

4021223420000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4021223420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5243503879152).

4021223420000 is an abundant number, since it is smaller than the sum of its proper divisors (6465784338304).

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

4021223420000 is a wasteful number, since it uses less digits than its factorization.

4021223420000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572 (or 1549 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 4021223420000 its reverse (243221204), we get a palindrome (4021466641204).

The spelling of 4021223420000 in words is "four trillion, twenty-one billion, two hundred twenty-three million, four hundred twenty thousand".