4002233020221 has 4 divisors (see below), whose sum is σ = 5336310693632. Its totient is φ = 2668155346812.

The previous prime is 4002233020217. The next prime is 4002233020223. The reversal of 4002233020221 is 1220203322004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4002233020221 - 2² = 4002233020217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4002233020223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 667038836701 + ... + 667038836706.

It is an arithmetic number, because the mean of its divisors is an integer number (1334077673408).

Almost surely, 2^{4002233020221} is an apocalyptic number.

It is an amenable number.

4002233020221 is a deficient number, since it is larger than the sum of its proper divisors (1334077673411).

4002233020221 is a wasteful number, since it uses less digits than its factorization.

4002233020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334077673410.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 4002233020221 its reverse (1220203322004), we get a palindrome (5222436342225).

The spelling of 4002233020221 in words is "four trillion, two billion, two hundred thirty-three million, twenty thousand, two hundred twenty-one".