201122001111961 has 2 divisors, whose sum is σ = 201122001111962. Its totient is φ = 201122001111960.

The previous prime is 201122001111929. The next prime is 201122001112037. The reversal of 201122001111961 is 169111100221102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110047044489561 + 91074956622400 = 10490331^2 + 9543320^2 .

It is a cyclic number.

It is not a de Polignac number, because 201122001111961 - 2⁵ = 201122001111929 is a prime.

It is not a weakly prime, because it can be changed into another prime (201122001114961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100561000555980 + 100561000555981.

It is an arithmetic number, because the mean of its divisors is an integer number (100561000555981).

Almost surely, 2^{201122001111961} is an apocalyptic number.

It is an amenable number.

201122001111961 is a deficient number, since it is larger than the sum of its proper divisors (1).

201122001111961 is an equidigital number, since it uses as much as digits as its factorization.

201122001111961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 28.

The spelling of 201122001111961 in words is "two hundred one trillion, one hundred twenty-two billion, one million, one hundred eleven thousand, nine hundred sixty-one".