10333121220 has 144 divisors (see below), whose sum is σ = 34630727040. Its totient is φ = 2480636928.

The previous prime is 10333121219. The next prime is 10333121233. The reversal of 10333121220 is 2212133301.

10333121220 is a `hidden beast` number, since 103 + 331 + 212 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10333121193 and 10333121202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3030 + ... + 143789.

It is an arithmetic number, because the mean of its divisors is an integer number (240491160).

Almost surely, 2^10333121220 is an apocalyptic number.

10333121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10333121220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17315363520).

10333121220 is an abundant number, since it is smaller than the sum of its proper divisors (24297605820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10333121220 is a wasteful number, since it uses less digits than its factorization.

10333121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146874 (or 146869 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 10333121220 its reverse (2212133301), we get a palindrome (12545254521).

The spelling of 10333121220 in words is "ten billion, three hundred thirty-three million, one hundred twenty-one thousand, two hundred twenty".