121101001010101 has 16 divisors (see below), whose sum is σ = 142450648368640. Its totient is φ = 100806809575680.

The previous prime is 121101001010089. The next prime is 121101001010107. The reversal of 121101001010101 is 101010100101121.

It is a cyclic number.

It is not a de Polignac number, because 121101001010101 - 2⁹ = 121101001009589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121101001010107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1794959316 + ... + 1795026781.

It is an arithmetic number, because the mean of its divisors is an integer number (8903165523040).

Almost surely, 2^{121101001010101} is an apocalyptic number.

It is an amenable number.

121101001010101 is a deficient number, since it is larger than the sum of its proper divisors (21349647358539).

121101001010101 is an equidigital number, since it uses as much as digits as its factorization.

121101001010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3589986244.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 121101001010101 its reverse (101010100101121), we get a palindrome (222111101111222).

The spelling of 121101001010101 in words is "one hundred twenty-one trillion, one hundred one billion, one million, ten thousand, one hundred one".