10120332121 has 6 divisors (see below), whose sum is σ = 10681015722. Its totient is φ = 9587682720.

The previous prime is 10120332113. The next prime is 10120332149. The reversal of 10120332121 is 12123302101.

It can be written as a sum of positive squares in only one way, i.e., 8823972096 + 1296360025 = 93936^2 + 36005^2 .

It is not a de Polignac number, because 10120332121 - 2³ = 10120332113 is a prime.

It is a super-2 number, since 2×10120332121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10120332095 and 10120332104.

It is not an unprimeable number, because it can be changed into a prime (10120332421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14016720 + ... + 14017441.

It is an arithmetic number, because the mean of its divisors is an integer number (1780169287).

Almost surely, 2^10120332121 is an apocalyptic number.

It is an amenable number.

10120332121 is a deficient number, since it is larger than the sum of its proper divisors (560683601).

10120332121 is an equidigital number, since it uses as much as digits as its factorization.

10120332121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28034199 (or 28034180 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 10120332121 its reverse (12123302101), we get a palindrome (22243634222).

The spelling of 10120332121 in words is "ten billion, one hundred twenty million, three hundred thirty-two thousand, one hundred twenty-one".