20202122231 has 2 divisors, whose sum is σ = 20202122232. Its totient is φ = 20202122230.

The previous prime is 20202122221. The next prime is 20202122233. The reversal of 20202122231 is 13222120202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20202122231 is a prime.

It is a super-2 number, since 2×20202122231² (a number of 21 digits) contains 22 as substring.

Together with 20202122233, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20202122233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101061115 + 10101061116.

It is an arithmetic number, because the mean of its divisors is an integer number (10101061116).

Almost surely, 2^20202122231 is an apocalyptic number.

20202122231 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202122231 is an equidigital number, since it uses as much as digits as its factorization.

20202122231 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 17.

Adding to 20202122231 its reverse (13222120202), we get a palindrome (33424242433).

The spelling of 20202122231 in words is "twenty billion, two hundred two million, one hundred twenty-two thousand, two hundred thirty-one".