10121203002121 has 4 divisors (see below), whose sum is σ = 10121233259392. Its totient is φ = 10121172744852.

The previous prime is 10121203002103. The next prime is 10121203002181. The reversal of 10121203002121 is 12120030212101.

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 10121203002121 - 2¹⁹ = 10121202477833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10121203002095 and 10121203002104.

It is not an unprimeable number, because it can be changed into a prime (10121203002181) 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, 14621205 + ... + 15297778.

It is an arithmetic number, because the mean of its divisors is an integer number (2530308314848).

Almost surely, 2^{10121203002121} is an apocalyptic number.

It is an amenable number.

10121203002121 is a deficient number, since it is larger than the sum of its proper divisors (30257271).

10121203002121 is an equidigital number, since it uses as much as digits as its factorization.

10121203002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30257270.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 10121203002121 its reverse (12120030212101), we get a palindrome (22241233214222).

The spelling of 10121203002121 in words is "ten trillion, one hundred twenty-one billion, two hundred three million, two thousand, one hundred twenty-one".