121110202122101 has 2 divisors, whose sum is σ = 121110202122102. Its totient is φ = 121110202122100.

The previous prime is 121110202122083. The next prime is 121110202122131. The reversal of 121110202122101 is 101221202011121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68380892487076 + 52729309635025 = 8269274^2 + 7261495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121110202122101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121110202122101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121110202122131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60555101061050 + 60555101061051.

It is an arithmetic number, because the mean of its divisors is an integer number (60555101061051).

Almost surely, 2^{121110202122101} is an apocalyptic number.

It is an amenable number.

121110202122101 is a deficient number, since it is larger than the sum of its proper divisors (1).

121110202122101 is an equidigital number, since it uses as much as digits as its factorization.

121110202122101 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 17.

Adding to 121110202122101 its reverse (101221202011121), we get a palindrome (222331404133222).

The spelling of 121110202122101 in words is "one hundred twenty-one trillion, one hundred ten billion, two hundred two million, one hundred twenty-two thousand, one hundred one".