121122202021201 has 2 divisors, whose sum is σ = 121122202021202. Its totient is φ = 121122202021200.

The previous prime is 121122202021169. The next prime is 121122202021229. The reversal of 121122202021201 is 102120202221121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83207691330625 + 37914510690576 = 9121825^2 + 6157476^2 .

It is a cyclic number.

It is not a de Polignac number, because 121122202021201 - 2⁵ = 121122202021169 is a prime.

It is not a weakly prime, because it can be changed into another prime (121122202021231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60561101010600 + 60561101010601.

It is an arithmetic number, because the mean of its divisors is an integer number (60561101010601).

Almost surely, 2^{121122202021201} is an apocalyptic number.

It is an amenable number.

121122202021201 is a deficient number, since it is larger than the sum of its proper divisors (1).

121122202021201 is an equidigital number, since it uses as much as digits as its factorization.

121122202021201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121122202021201 its reverse (102120202221121), we get a palindrome (223242404242322).

The spelling of 121122202021201 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, two hundred two million, twenty-one thousand, two hundred one".