22120221413 has 4 divisors (see below), whose sum is σ = 22495140480. Its totient is φ = 21745302348.

The previous prime is 22120221371. The next prime is 22120221443. The reversal of 22120221413 is 31412202122.

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 22120221413 - 2⁸ = 22120221157 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 (22120221443) 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, 187459445 + ... + 187459562.

It is an arithmetic number, because the mean of its divisors is an integer number (5623785120).

Almost surely, 2^22120221413 is an apocalyptic number.

It is an amenable number.

22120221413 is a deficient number, since it is larger than the sum of its proper divisors (374919067).

22120221413 is an equidigital number, since it uses as much as digits as its factorization.

22120221413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374919066.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 22120221413 its reverse (31412202122), we get a palindrome (53532423535).

The spelling of 22120221413 in words is "twenty-two billion, one hundred twenty million, two hundred twenty-one thousand, four hundred thirteen".