4021221004032 has 72 divisors (see below), whose sum is σ = 10750305040384. Its totient is φ = 1334396150784.

The previous prime is 4021221004027. The next prime is 4021221004043. The reversal of 4021221004032 is 2304001221204.

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, 11568568 + ... + 11911095.

Almost surely, 2^{4021221004032} is an apocalyptic number.

It is an amenable number.

4021221004032 is an abundant number, since it is smaller than the sum of its proper divisors (6729084036352).

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

4021221004032 is a wasteful number, since it uses less digits than its factorization.

4021221004032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23479905 (or 23479891 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 4021221004032 its reverse (2304001221204), we get a palindrome (6325222225236).

The spelling of 4021221004032 in words is "four trillion, twenty-one billion, two hundred twenty-one million, four thousand, thirty-two".