10133313221 has 12 divisors (see below), whose sum is σ = 10627567020. Its totient is φ = 9656176320.

The previous prime is 10133313181. The next prime is 10133313257. The reversal of 10133313221 is 12231333101.

It can be written as a sum of positive squares in 2 ways, for example, as 155500900 + 9977812321 = 12470^2 + 99889^2 .

It is a de Polignac number, because none of the positive numbers 2^k-10133313221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10133313193 and 10133313202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10133313521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8975 + ... + 142643.

It is an arithmetic number, because the mean of its divisors is an integer number (885630585).

Almost surely, 2^10133313221 is an apocalyptic number.

It is an amenable number.

10133313221 is a deficient number, since it is larger than the sum of its proper divisors (494253799).

10133313221 is an equidigital number, since it uses as much as digits as its factorization.

10133313221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133796 (or 133753 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 10133313221 its reverse (12231333101), we get a palindrome (22364646322).

The spelling of 10133313221 in words is "ten billion, one hundred thirty-three million, three hundred thirteen thousand, two hundred twenty-one".