4022222013221 has 4 divisors (see below), whose sum is σ = 4073136216000. Its totient is φ = 3971307810444.

The previous prime is 4022222013191. The next prime is 4022222013223. The reversal of 4022222013221 is 1223102222204.

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 a cyclic number.

It is not a de Polignac number, because 4022222013221 - 2¹⁰ = 4022222012197 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 (4022222013223) 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, 25457101271 + ... + 25457101428.

It is an arithmetic number, because the mean of its divisors is an integer number (1018284054000).

Almost surely, 2^{4022222013221} is an apocalyptic number.

It is an amenable number.

4022222013221 is a deficient number, since it is larger than the sum of its proper divisors (50914202779).

4022222013221 is an equidigital number, since it uses as much as digits as its factorization.

4022222013221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50914202778.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 4022222013221 its reverse (1223102222204), we get a palindrome (5245324235425).

The spelling of 4022222013221 in words is "four trillion, twenty-two billion, two hundred twenty-two million, thirteen thousand, two hundred twenty-one".