101210121020201 has 2 divisors, whose sum is σ = 101210121020202. Its totient is φ = 101210121020200.

The previous prime is 101210121020137. The next prime is 101210121020213. The reversal of 101210121020201 is 102020121012101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100139568664576 + 1070552355625 = 10006976^2 + 1034675^2 .

It is an emirp because it is prime and its reverse (102020121012101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101210121020201 - 2⁶ = 101210121020137 is a prime.

It is not a weakly prime, because it can be changed into another prime (101210121020101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50605060510100 + 50605060510101.

It is an arithmetic number, because the mean of its divisors is an integer number (50605060510101).

Almost surely, 2^{101210121020201} is an apocalyptic number.

It is an amenable number.

101210121020201 is a deficient number, since it is larger than the sum of its proper divisors (1).

101210121020201 is an equidigital number, since it uses as much as digits as its factorization.

101210121020201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101210121020201 its reverse (102020121012101), we get a palindrome (203230242032302).

The spelling of 101210121020201 in words is "one hundred one trillion, two hundred ten billion, one hundred twenty-one million, twenty thousand, two hundred one".