201122022511 has 2 divisors, whose sum is σ = 201122022512. Its totient is φ = 201122022510.

The previous prime is 201122022467. The next prime is 201122022539. The reversal of 201122022511 is 115220221102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201122022511 - 2¹³ = 201122014319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201122022911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100561011255 + 100561011256.

It is an arithmetic number, because the mean of its divisors is an integer number (100561011256).

Almost surely, 2^201122022511 is an apocalyptic number.

201122022511 is a deficient number, since it is larger than the sum of its proper divisors (1).

201122022511 is an equidigital number, since it uses as much as digits as its factorization.

201122022511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 201122022511 its reverse (115220221102), we get a palindrome (316342243613).

The spelling of 201122022511 in words is "two hundred one billion, one hundred twenty-two million, twenty-two thousand, five hundred eleven".