121020101202101 has 2 divisors, whose sum is σ = 121020101202102. Its totient is φ = 121020101202100.

The previous prime is 121020101202059. The next prime is 121020101202107. The reversal of 121020101202101 is 101202101020121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72011686840900 + 49008414361201 = 8485970^2 + 7000601^2 .

It is a cyclic number.

It is not a de Polignac number, because 121020101202101 - 2³⁸ = 120745223295157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121020101202107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60510050601050 + 60510050601051.

It is an arithmetic number, because the mean of its divisors is an integer number (60510050601051).

Almost surely, 2^{121020101202101} is an apocalyptic number.

It is an amenable number.

121020101202101 is a deficient number, since it is larger than the sum of its proper divisors (1).

121020101202101 is an equidigital number, since it uses as much as digits as its factorization.

121020101202101 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 121020101202101 its reverse (101202101020121), we get a palindrome (222222202222222).

The spelling of 121020101202101 in words is "one hundred twenty-one trillion, twenty billion, one hundred one million, two hundred two thousand, one hundred one".