20122210393 has 2 divisors, whose sum is σ = 20122210394. Its totient is φ = 20122210392.

The previous prime is 20122210369. The next prime is 20122210397. The reversal of 20122210393 is 39301222102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19833652224 + 288558169 = 140832^2 + 16987^2 .

It is a cyclic number.

It is not a de Polignac number, because 20122210393 - 2³³ = 11532275801 is a prime.

It is a super-2 number, since 2×20122210393² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20122210397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061105196 + 10061105197.

It is an arithmetic number, because the mean of its divisors is an integer number (10061105197).

Almost surely, 2^20122210393 is an apocalyptic number.

It is an amenable number.

20122210393 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122210393 is an equidigital number, since it uses as much as digits as its factorization.

20122210393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 20122210393 its reverse (39301222102), we get a palindrome (59423432495).

The spelling of 20122210393 in words is "twenty billion, one hundred twenty-two million, two hundred ten thousand, three hundred ninety-three".