22120030213 has 4 divisors (see below), whose sum is σ = 22322966380. Its totient is φ = 21917094048.

The previous prime is 22120030211. The next prime is 22120030217. The reversal of 22120030213 is 31203002122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20109225249 + 2010804964 = 141807^2 + 44842^2 .

It is a cyclic number.

It is not a de Polignac number, because 22120030213 - 2¹ = 22120030211 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 (22120030211) 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, 101467920 + ... + 101468137.

It is an arithmetic number, because the mean of its divisors is an integer number (5580741595).

Almost surely, 2^22120030213 is an apocalyptic number.

It is an amenable number.

22120030213 is a deficient number, since it is larger than the sum of its proper divisors (202936167).

22120030213 is a wasteful number, since it uses less digits than its factorization.

22120030213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202936166.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 22120030213 its reverse (31203002122), we get a palindrome (53323032335).

The spelling of 22120030213 in words is "twenty-two billion, one hundred twenty million, thirty thousand, two hundred thirteen".