10321220121 has 8 divisors (see below), whose sum is σ = 13950142560. Its totient is φ = 6786555552.

The previous prime is 10321220059. The next prime is 10321220131. The reversal of 10321220121 is 12102212301.

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

It is not a de Polignac number, because 10321220121 - 2¹¹ = 10321218073 is a prime.

It is a super-2 number, since 2×10321220121² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10321220121.

It is not an unprimeable number, because it can be changed into a prime (10321220131) 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, 23564211 + ... + 23564648.

It is an arithmetic number, because the mean of its divisors is an integer number (1743767820).

Almost surely, 2^10321220121 is an apocalyptic number.

It is an amenable number.

10321220121 is a deficient number, since it is larger than the sum of its proper divisors (3628922439).

10321220121 is an equidigital number, since it uses as much as digits as its factorization.

10321220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47128935.

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

Adding to 10321220121 its reverse (12102212301), we get a palindrome (22423432422).

The spelling of 10321220121 in words is "ten billion, three hundred twenty-one million, two hundred twenty thousand, one hundred twenty-one".