121101000101 has 2 divisors, whose sum is σ = 121101000102. Its totient is φ = 121101000100.

The previous prime is 121101000091. The next prime is 121101000107. The reversal of 121101000101 is 101000101121.

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., 111706350625 + 9394649476 = 334225^2 + 96926^2 .

It is a cyclic number.

It is not a de Polignac number, because 121101000101 - 2³⁰ = 120027258277 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121101000107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60550500050 + 60550500051.

It is an arithmetic number, because the mean of its divisors is an integer number (60550500051).

Almost surely, 2^121101000101 is an apocalyptic number.

It is an amenable number.

121101000101 is a deficient number, since it is larger than the sum of its proper divisors (1).

121101000101 is an equidigital number, since it uses as much as digits as its factorization.

121101000101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 121101000101 its reverse (101000101121), we get a palindrome (222101101222).

It can be divided in two parts, 121 and 101000101, that multiplied together give a palindrome (12221012221).

The spelling of 121101000101 in words is "one hundred twenty-one billion, one hundred one million, one hundred one", and thus it is an aban number.