10121002221321 has 8 divisors (see below), whose sum is σ = 14994077364960. Its totient is φ = 6747334814196.

The previous prime is 10121002221311. The next prime is 10121002221347. The reversal of 10121002221321 is 12312220012101.

10121002221321 is a `hidden beast` number, since 1 + 0 + 121 + 0 + 0 + 2 + 221 + 321 = 666.

It is not a de Polignac number, because 10121002221321 - 2³⁴ = 10103822352137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10121002221294 and 10121002221303.

It is not an unprimeable number, because it can be changed into a prime (10121002221301) 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, 187425967035 + ... + 187425967088.

It is an arithmetic number, because the mean of its divisors is an integer number (1874259670620).

Almost surely, 2^{10121002221321} is an apocalyptic number.

It is an amenable number.

10121002221321 is a deficient number, since it is larger than the sum of its proper divisors (4873075143639).

10121002221321 is an equidigital number, since it uses as much as digits as its factorization.

10121002221321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374851934132 (or 374851934126 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 10121002221321 its reverse (12312220012101), we get a palindrome (22433222233422).

The spelling of 10121002221321 in words is "ten trillion, one hundred twenty-one billion, two million, two hundred twenty-one thousand, three hundred twenty-one".