10421001234121 has 4 divisors (see below), whose sum is σ = 10425374296192. Its totient is φ = 10416628172052.

The previous prime is 10421001234113. The next prime is 10421001234139. The reversal of 10421001234121 is 12143210012401.

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 10421001234121 - 2³ = 10421001234113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10421001234092 and 10421001234101.

It is not an unprimeable number, because it can be changed into a prime (10421001234521) 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, 2186527461 + ... + 2186532226.

It is an arithmetic number, because the mean of its divisors is an integer number (2606343574048).

Almost surely, 2^{10421001234121} is an apocalyptic number.

It is an amenable number.

10421001234121 is a deficient number, since it is larger than the sum of its proper divisors (4373062071).

10421001234121 is an equidigital number, since it uses as much as digits as its factorization.

10421001234121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4373062070.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 10421001234121 its reverse (12143210012401), we get a palindrome (22564211246522).

The spelling of 10421001234121 in words is "ten trillion, four hundred twenty-one billion, one million, two hundred thirty-four thousand, one hundred twenty-one".