121101002101 has 4 divisors (see below), whose sum is σ = 122759920012. Its totient is φ = 119442084192.

The previous prime is 121101002059. The next prime is 121101002111. The reversal of 121101002101 is 101200101121.

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 61675239025 + 59425763076 = 248345^2 + 243774^2 .

It is a cyclic number.

It is not a de Polignac number, because 121101002101 - 2⁹ = 121101001589 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 (121101002111) 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 in 3 ways as a sum of consecutive naturals, for example, 829458846 + ... + 829458991.

It is an arithmetic number, because the mean of its divisors is an integer number (30689980003).

Almost surely, 2^121101002101 is an apocalyptic number.

It is an amenable number.

121101002101 is a deficient number, since it is larger than the sum of its proper divisors (1658917911).

121101002101 is an equidigital number, since it uses as much as digits as its factorization.

121101002101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658917910.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 121101002101 its reverse (101200101121), we get a palindrome (222301103222).

The spelling of 121101002101 in words is "one hundred twenty-one billion, one hundred one million, two thousand, one hundred one".