201200122221061 has 2 divisors, whose sum is σ = 201200122221062. Its totient is φ = 201200122221060.

The previous prime is 201200122221053. The next prime is 201200122221083. The reversal of 201200122221061 is 160122221002102.

201200122221061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (201200122221083) can be obtained adding 201200122221061 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108077023920100 + 93123098300961 = 10396010^2 + 9650031^2 .

It is a cyclic number.

It is not a de Polignac number, because 201200122221061 - 2³ = 201200122221053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201200122221361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100600061110530 + 100600061110531.

It is an arithmetic number, because the mean of its divisors is an integer number (100600061110531).

Almost surely, 2^{201200122221061} is an apocalyptic number.

It is an amenable number.

201200122221061 is a deficient number, since it is larger than the sum of its proper divisors (1).

201200122221061 is an equidigital number, since it uses as much as digits as its factorization.

201200122221061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 201200122221061 its reverse (160122221002102), we get a palindrome (361322343223163).

The spelling of 201200122221061 in words is "two hundred one trillion, two hundred billion, one hundred twenty-two million, two hundred twenty-one thousand, sixty-one".