121110100110101 has 4 divisors (see below), whose sum is σ = 121180966173900. Its totient is φ = 121039234046304.

The previous prime is 121110100110059. The next prime is 121110100110133. The reversal of 121110100110101 is 101011001011121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43758092700100 + 77352007410001 = 6614990^2 + 8794999^2 .

It is a cyclic number.

It is not a de Polignac number, because 121110100110101 - 2⁶ = 121110100110037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121110100110001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35433029336 + ... + 35433032753.

It is an arithmetic number, because the mean of its divisors is an integer number (30295241543475).

Almost surely, 2^{121110100110101} is an apocalyptic number.

It is an amenable number.

121110100110101 is a deficient number, since it is larger than the sum of its proper divisors (70866063799).

121110100110101 is an equidigital number, since it uses as much as digits as its factorization.

121110100110101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70866063798.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 121110100110101 its reverse (101011001011121), we get a palindrome (222121101121222).

The spelling of 121110100110101 in words is "one hundred twenty-one trillion, one hundred ten billion, one hundred million, one hundred ten thousand, one hundred one".