33213223133220 has 96 divisors (see below), whose sum is σ = 103381308011520. Its totient is φ = 7911834785280.

The previous prime is 33213223133191. The next prime is 33213223133281. The reversal of 33213223133220 is 2233132231233.

It is a super-2 number, since 2×33213223133220² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 686767035 + ... + 686815394.

It is an arithmetic number, because the mean of its divisors is an integer number (1076888625120).

Almost surely, 2^{33213223133220} is an apocalyptic number.

33213223133220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33213223133220 is an abundant number, since it is smaller than the sum of its proper divisors (70168084878300).

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

33213223133220 is a wasteful number, since it uses less digits than its factorization.

33213223133220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373582485 (or 1373582483 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 30.

Adding to 33213223133220 its reverse (2233132231233), we get a palindrome (35446355364453).

The spelling of 33213223133220 in words is "thirty-three trillion, two hundred thirteen billion, two hundred twenty-three million, one hundred thirty-three thousand, two hundred twenty".