101211111025201 has 2 divisors, whose sum is σ = 101211111025202. Its totient is φ = 101211111025200.

The previous prime is 101211111025163. The next prime is 101211111025223. The reversal of 101211111025201 is 102520111112101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93110939658801 + 8100171366400 = 9649401^2 + 2846080^2 .

It is a cyclic number.

It is not a de Polignac number, because 101211111025201 - 2²³ = 101211102636593 is a prime.

It is not a weakly prime, because it can be changed into another prime (101211111025001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50605555512600 + 50605555512601.

It is an arithmetic number, because the mean of its divisors is an integer number (50605555512601).

Almost surely, 2^{101211111025201} is an apocalyptic number.

It is an amenable number.

101211111025201 is a deficient number, since it is larger than the sum of its proper divisors (1).

101211111025201 is an equidigital number, since it uses as much as digits as its factorization.

101211111025201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 19.

Adding to 101211111025201 its reverse (102520111112101), we get a palindrome (203731222137302).

The spelling of 101211111025201 in words is "one hundred one trillion, two hundred eleven billion, one hundred eleven million, twenty-five thousand, two hundred one".