10122012321 has 8 divisors (see below), whose sum is σ = 13496490720. Its totient is φ = 6747771072.

The previous prime is 10122012317. The next prime is 10122012343. The reversal of 10122012321 is 12321022101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10122012321 - 2² = 10122012317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10122012321.

It is not an unprimeable number, because it can be changed into a prime (10122012301) 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, 106681 + ... + 177833.

It is an arithmetic number, because the mean of its divisors is an integer number (1687061340).

Almost surely, 2^10122012321 is an apocalyptic number.

It is an amenable number.

10122012321 is a deficient number, since it is larger than the sum of its proper divisors (3374478399).

10122012321 is an equidigital number, since it uses as much as digits as its factorization.

10122012321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118575.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 10122012321 its reverse (12321022101), we get a palindrome (22443034422).

The spelling of 10122012321 in words is "ten billion, one hundred twenty-two million, twelve thousand, three hundred twenty-one".