10233121122121 has 4 divisors (see below), whose sum is σ = 10234903591044. Its totient is φ = 10231338653200.

The previous prime is 10233121122071. The next prime is 10233121122137. The reversal of 10233121122121 is 12122112133201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5393825096521 + 4839296025600 = 2322461^2 + 2199840^2 .

It is a cyclic number.

It is not a de Polignac number, because 10233121122121 - 2²¹ = 10233119024969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10233121122092 and 10233121122101.

It is not an unprimeable number, because it can be changed into a prime (10233121102121) 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, 891225850 + ... + 891237331.

It is an arithmetic number, because the mean of its divisors is an integer number (2558725897761).

Almost surely, 2^{10233121122121} is an apocalyptic number.

It is an amenable number.

10233121122121 is a deficient number, since it is larger than the sum of its proper divisors (1782468923).

10233121122121 is an equidigital number, since it uses as much as digits as its factorization.

10233121122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782468922.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 10233121122121 its reverse (12122112133201), we get a palindrome (22355233255322).

The spelling of 10233121122121 in words is "ten trillion, two hundred thirty-three billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred twenty-one".