42220033221 has 4 divisors (see below), whose sum is σ = 56293377632. Its totient is φ = 28146688812.

The previous prime is 42220033189. The next prime is 42220033241. The reversal of 42220033221 is 12233002224.

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 42220033221 - 2⁵ = 42220033189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42220033241) 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, 7036672201 + ... + 7036672206.

It is an arithmetic number, because the mean of its divisors is an integer number (14073344408).

Almost surely, 2^42220033221 is an apocalyptic number.

It is an amenable number.

42220033221 is a deficient number, since it is larger than the sum of its proper divisors (14073344411).

42220033221 is a wasteful number, since it uses less digits than its factorization.

42220033221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14073344410.

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

Adding to 42220033221 its reverse (12233002224), we get a palindrome (54453035445).

It can be divided in two parts, 4222003 and 3221, that added together give a palindrome (4225224).

The spelling of 42220033221 in words is "forty-two billion, two hundred twenty million, thirty-three thousand, two hundred twenty-one".