22120034221 has 4 divisors (see below), whose sum is σ = 22833583744. Its totient is φ = 21406484700.

The previous prime is 22120034201. The next prime is 22120034227. The reversal of 22120034221 is 12243002122.

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 22120034221 - 2⁷ = 22120034093 is a prime.

It is a super-2 number, since 2×22120034221² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120034227) 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, 356774715 + ... + 356774776.

It is an arithmetic number, because the mean of its divisors is an integer number (5708395936).

Almost surely, 2^22120034221 is an apocalyptic number.

It is an amenable number.

22120034221 is a deficient number, since it is larger than the sum of its proper divisors (713549523).

22120034221 is an equidigital number, since it uses as much as digits as its factorization.

22120034221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713549522.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22120034221 its reverse (12243002122), we get a palindrome (34363036343).

The spelling of 22120034221 in words is "twenty-two billion, one hundred twenty million, thirty-four thousand, two hundred twenty-one".