22120223213 has 4 divisors (see below), whose sum is σ = 24131152608. Its totient is φ = 20109293820.

The previous prime is 22120223207. The next prime is 22120223219. The reversal of 22120223213 is 31232202122.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (22120223207) and next prime (22120223219).

It is a de Polignac number, because none of the positive numbers 2^k-22120223213 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 (22120223219) 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, 1005464681 + ... + 1005464702.

It is an arithmetic number, because the mean of its divisors is an integer number (6032788152).

Almost surely, 2^22120223213 is an apocalyptic number.

It is an amenable number.

22120223213 is a deficient number, since it is larger than the sum of its proper divisors (2010929395).

22120223213 is a wasteful number, since it uses less digits than its factorization.

22120223213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010929394.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22120223213 its reverse (31232202122), we get a palindrome (53352425335).

The spelling of 22120223213 in words is "twenty-two billion, one hundred twenty million, two hundred twenty-three thousand, two hundred thirteen".