121110010101 has 6 divisors (see below), whose sum is σ = 174936681270. Its totient is φ = 80740006728.

The previous prime is 121110010079. The next prime is 121110010127. The reversal of 121110010101 is 101010011121.

It can be written as a sum of positive squares in only one way, i.e., 84628628100 + 36481382001 = 290910^2 + 191001^2 .

It is not a de Polignac number, because 121110010101 - 2⁷ = 121110009973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 13456667789 = 121110010101 / (1 + 2 + 1 + 1 + 1 + 0 + 0 + 1 + 0 + 1 + 0 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121110710101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6728333886 + ... + 6728333903.

It is an arithmetic number, because the mean of its divisors is an integer number (29156113545).

Almost surely, 2^121110010101 is an apocalyptic number.

It is an amenable number.

121110010101 is a deficient number, since it is larger than the sum of its proper divisors (53826671169).

121110010101 is a wasteful number, since it uses less digits than its factorization.

121110010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13456667795 (or 13456667792 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 121110010101 its reverse (101010011121), we get a palindrome (222120021222).

The spelling of 121110010101 in words is "one hundred twenty-one billion, one hundred ten million, ten thousand, one hundred one".