120202100102221 has 2 divisors, whose sum is σ = 120202100102222. Its totient is φ = 120202100102220.

The previous prime is 120202100102141. The next prime is 120202100102251. The reversal of 120202100102221 is 122201001202021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103799195099721 + 16402905002500 = 10188189^2 + 4050050^2 .

It is a cyclic number.

It is not a de Polignac number, because 120202100102221 - 2¹⁹ = 120202099577933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120202100102195 and 120202100102204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120202100102251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60101050051110 + 60101050051111.

It is an arithmetic number, because the mean of its divisors is an integer number (60101050051111).

Almost surely, 2^{120202100102221} is an apocalyptic number.

It is an amenable number.

120202100102221 is a deficient number, since it is larger than the sum of its proper divisors (1).

120202100102221 is an equidigital number, since it uses as much as digits as its factorization.

120202100102221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 120202100102221 its reverse (122201001202021), we get a palindrome (242403101304242).

The spelling of 120202100102221 in words is "one hundred twenty trillion, two hundred two billion, one hundred million, one hundred two thousand, two hundred twenty-one".