33220213020 has 96 divisors (see below), whose sum is σ = 104355363840. Its totient is φ = 8772701760.

The previous prime is 33220212989. The next prime is 33220213049. The reversal of 33220213020 is 2031202233.

It is a happy number.

33220213020 is a `hidden beast` number, since 332 + 202 + 130 + 2 + 0 = 666.

It is a super-2 number, since 2×33220213020² (a number of 22 digits) contains 22 as substring.

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 = 33220212984 and 33220213002.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 243016 + ... + 354255.

It is an arithmetic number, because the mean of its divisors is an integer number (1087035040).

Almost surely, 2^33220213020 is an apocalyptic number.

33220213020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33220213020 is an abundant number, since it is smaller than the sum of its proper divisors (71135150820).

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

33220213020 is a wasteful number, since it uses less digits than its factorization.

33220213020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597392 (or 597384 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 33220213020 its reverse (2031202233), we get a palindrome (35251415253).

The spelling of 33220213020 in words is "thirty-three billion, two hundred twenty million, two hundred thirteen thousand, twenty".