201020022131 has 2 divisors, whose sum is σ = 201020022132. Its totient is φ = 201020022130.

The previous prime is 201020022089. The next prime is 201020022193. The reversal of 201020022131 is 131220020102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201020022131 - 2⁶ = 201020022067 is a prime.

It is a super-2 number, since 2×201020022131² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201020022431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100510011065 + 100510011066.

It is an arithmetic number, because the mean of its divisors is an integer number (100510011066).

Almost surely, 2^201020022131 is an apocalyptic number.

201020022131 is a deficient number, since it is larger than the sum of its proper divisors (1).

201020022131 is an equidigital number, since it uses as much as digits as its factorization.

201020022131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 201020022131 its reverse (131220020102), we get a palindrome (332240042233).

The spelling of 201020022131 in words is "two hundred one billion, twenty million, twenty-two thousand, one hundred thirty-one".