10121022010321 has 4 divisors (see below), whose sum is σ = 10121597707444. Its totient is φ = 10120446313200.

The previous prime is 10121022010301. The next prime is 10121022010361. The reversal of 10121022010321 is 12301022012101.

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 2106257177025 + 8014764833296 = 1451295^2 + 2831036^2 .

It is a cyclic number.

It is not a de Polignac number, because 10121022010321 - 2⁹ = 10121022009809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10121022010295 and 10121022010304.

It is not an unprimeable number, because it can be changed into a prime (10121022010301) 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, 287822190 + ... + 287857351.

It is an arithmetic number, because the mean of its divisors is an integer number (2530399426861).

Almost surely, 2^{10121022010321} is an apocalyptic number.

It is an amenable number.

10121022010321 is a deficient number, since it is larger than the sum of its proper divisors (575697123).

10121022010321 is an equidigital number, since it uses as much as digits as its factorization.

10121022010321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575697122.

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

Adding to 10121022010321 its reverse (12301022012101), we get a palindrome (22422044022422).

The spelling of 10121022010321 in words is "ten trillion, one hundred twenty-one billion, twenty-two million, ten thousand, three hundred twenty-one".