121020002010121 has 8 divisors (see below), whose sum is σ = 121470733728000. Its totient is φ = 120569276538960.

The previous prime is 121020002010001. The next prime is 121020002010263. The reversal of 121020002010121 is 121010200020121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121020002010121 - 2⁷ = 121020002009993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121020002019121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39238330 + ... + 42210028.

It is an arithmetic number, because the mean of its divisors is an integer number (15183841716000).

Almost surely, 2^{121020002010121} is an apocalyptic number.

It is an amenable number.

121020002010121 is a deficient number, since it is larger than the sum of its proper divisors (450731717879).

121020002010121 is a wasteful number, since it uses less digits than its factorization.

121020002010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3123359.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121020002010121 its reverse (121010200020121), we get a palindrome (242030202030242).

The spelling of 121020002010121 in words is "one hundred twenty-one trillion, twenty billion, two million, ten thousand, one hundred twenty-one".