4021223420032 has 128 divisors (see below), whose sum is σ = 9879503760000. Its totient is φ = 1587623362560.

The previous prime is 4021223419991. The next prime is 4021223420051. The reversal of 4021223420032 is 2300243221204.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 4021223419979 and 4021223420006.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5466432 + ... + 6158272.

It is an arithmetic number, because the mean of its divisors is an integer number (77183623125).

Almost surely, 2^{4021223420032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4021223420032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4939751880000).

4021223420032 is an abundant number, since it is smaller than the sum of its proper divisors (5858280339968).

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

4021223420032 is a wasteful number, since it uses less digits than its factorization.

4021223420032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692374 (or 692362 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 4021223420032 its reverse (2300243221204), we get a palindrome (6321466641236).

The spelling of 4021223420032 in words is "four trillion, twenty-one billion, two hundred twenty-three million, four hundred twenty thousand, thirty-two".