121010110020101 has 2 divisors, whose sum is σ = 121010110020102. Its totient is φ = 121010110020100.

The previous prime is 121010110020077. The next prime is 121010110020143. The reversal of 121010110020101 is 101020011010121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120851985292900 + 158124727201 = 10993270^2 + 397649^2 .

It is a cyclic number.

It is not a de Polignac number, because 121010110020101 - 2²² = 121010105825797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121010110020301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505055010050 + 60505055010051.

It is an arithmetic number, because the mean of its divisors is an integer number (60505055010051).

Almost surely, 2^{121010110020101} is an apocalyptic number.

It is an amenable number.

121010110020101 is a deficient number, since it is larger than the sum of its proper divisors (1).

121010110020101 is an equidigital number, since it uses as much as digits as its factorization.

121010110020101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 121010110020101 its reverse (101020011010121), we get a palindrome (222030121030222).

The spelling of 121010110020101 in words is "one hundred twenty-one trillion, ten billion, one hundred ten million, twenty thousand, one hundred one".