20122202212291 has 2 divisors, whose sum is σ = 20122202212292. Its totient is φ = 20122202212290.

The previous prime is 20122202212283. The next prime is 20122202212297. The reversal of 20122202212291 is 19221220222102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20122202212291 - 2³ = 20122202212283 is a prime.

It is not a weakly prime, because it can be changed into another prime (20122202212297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061101106145 + 10061101106146.

It is an arithmetic number, because the mean of its divisors is an integer number (10061101106146).

Almost surely, 2^{20122202212291} is an apocalyptic number.

20122202212291 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122202212291 is an equidigital number, since it uses as much as digits as its factorization.

20122202212291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

Adding to 20122202212291 its reverse (19221220222102), we get a palindrome (39343422434393).

The spelling of 20122202212291 in words is "twenty trillion, one hundred twenty-two billion, two hundred two million, two hundred twelve thousand, two hundred ninety-one".