22220020213 has 2 divisors, whose sum is σ = 22220020214. Its totient is φ = 22220020212.

The previous prime is 22220020177. The next prime is 22220020223. The reversal of 22220020213 is 31202002222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11316066129 + 10903954084 = 106377^2 + 104422^2 .

It is a cyclic number.

It is not a de Polignac number, because 22220020213 - 2¹³ = 22220012021 is a prime.

It is a super-2 number, since 2×22220020213² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22220020223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110010106 + 11110010107.

It is an arithmetic number, because the mean of its divisors is an integer number (11110010107).

Almost surely, 2^22220020213 is an apocalyptic number.

It is an amenable number.

22220020213 is a deficient number, since it is larger than the sum of its proper divisors (1).

22220020213 is an equidigital number, since it uses as much as digits as its factorization.

22220020213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 22220020213 its reverse (31202002222), we get a palindrome (53422022435).

The spelling of 22220020213 in words is "twenty-two billion, two hundred twenty million, twenty thousand, two hundred thirteen".