121020102001121 has 4 divisors (see below), whose sum is σ = 121021195821744. Its totient is φ = 121019008180500.

The previous prime is 121020102001087. The next prime is 121020102001159. The reversal of 121020102001121 is 121100201020121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121020102001121 - 2³⁸ = 120745224094177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121020102001096 and 121020102001105.

It is not an unprimeable number, because it can be changed into a prime (121020102001171) 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, 546744335 + ... + 546965636.

It is an arithmetic number, because the mean of its divisors is an integer number (30255298955436).

Almost surely, 2^{121020102001121} is an apocalyptic number.

It is an amenable number.

121020102001121 is a deficient number, since it is larger than the sum of its proper divisors (1093820623).

121020102001121 is a wasteful number, since it uses less digits than its factorization.

121020102001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093820622.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121020102001121 its reverse (121100201020121), we get a palindrome (242120303021242).

The spelling of 121020102001121 in words is "one hundred twenty-one trillion, twenty billion, one hundred two million, one thousand, one hundred twenty-one".