201122020087 has 2 divisors, whose sum is σ = 201122020088. Its totient is φ = 201122020086.

The previous prime is 201122020079. The next prime is 201122020103. The reversal of 201122020087 is 780020221102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201122020087 - 2³ = 201122020079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201122020787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100561010043 + 100561010044.

It is an arithmetic number, because the mean of its divisors is an integer number (100561010044).

Almost surely, 2^201122020087 is an apocalyptic number.

201122020087 is a deficient number, since it is larger than the sum of its proper divisors (1).

201122020087 is an equidigital number, since it uses as much as digits as its factorization.

201122020087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 25.

Adding to 201122020087 its reverse (780020221102), we get a palindrome (981142241189).

The spelling of 201122020087 in words is "two hundred one billion, one hundred twenty-two million, twenty thousand, eighty-seven".