201210112220101 has 2 divisors, whose sum is σ = 201210112220102. Its totient is φ = 201210112220100.

The previous prime is 201210112220069. The next prime is 201210112220107. The reversal of 201210112220101 is 101022211012102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168087957835876 + 33122154384225 = 12964874^2 + 5755185^2 .

It is a cyclic number.

It is not a de Polignac number, because 201210112220101 - 2⁵ = 201210112220069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201210112220107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100605056110050 + 100605056110051.

It is an arithmetic number, because the mean of its divisors is an integer number (100605056110051).

Almost surely, 2^{201210112220101} is an apocalyptic number.

It is an amenable number.

201210112220101 is a deficient number, since it is larger than the sum of its proper divisors (1).

201210112220101 is an equidigital number, since it uses as much as digits as its factorization.

201210112220101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 201210112220101 its reverse (101022211012102), we get a palindrome (302232323232203).

The spelling of 201210112220101 in words is "two hundred one trillion, two hundred ten billion, one hundred twelve million, two hundred twenty thousand, one hundred one".