122222300213 has 6 divisors (see below), whose sum is σ = 132347224674. Its totient is φ = 112820584656.

The previous prime is 122222300177. The next prime is 122222300237. The reversal of 122222300213 is 312003222221.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 8998799044 + 113223501169 = 94862^2 + 336487^2 .

It is not a de Polignac number, because 122222300213 - 2⁶ = 122222300149 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 (122222300243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 361604270 + ... + 361604607.

It is an arithmetic number, because the mean of its divisors is an integer number (22057870779).

Almost surely, 2^122222300213 is an apocalyptic number.

122222300213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

122222300213 is a deficient number, since it is larger than the sum of its proper divisors (10124924461).

122222300213 is an equidigital number, since it uses as much as digits as its factorization.

122222300213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723208903 (or 723208890 counting only the distinct ones).

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

Adding to 122222300213 its reverse (312003222221), we get a palindrome (434225522434).

The spelling of 122222300213 in words is "one hundred twenty-two billion, two hundred twenty-two million, three hundred thousand, two hundred thirteen".