33333333220 has 48 divisors (see below), whose sum is σ = 76530964608. Its totient is φ = 12094652160.

The previous prime is 33333333217. The next prime is 33333333223. The reversal of 33333333220 is 2233333333.

It is an interprime number because it is at equal distance from previous prime (33333333217) and next prime (33333333223).

It is a super-2 number, since 2×33333333220² (a number of 22 digits) contains 22 as substring.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (33333333223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65232 + ... + 266311.

It is an arithmetic number, because the mean of its divisors is an integer number (1594395096).

Almost surely, 2^33333333220 is an apocalyptic number.

It is an amenable number.

33333333220 is an abundant number, since it is smaller than the sum of its proper divisors (43197631388).

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

33333333220 is a wasteful number, since it uses less digits than its factorization.

33333333220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332020 (or 332018 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 28.

Adding to 33333333220 its reverse (2233333333), we get a palindrome (35566666553).

The spelling of 33333333220 in words is "thirty-three billion, three hundred thirty-three million, three hundred thirty-three thousand, two hundred twenty".