33302012020 has 12 divisors (see below), whose sum is σ = 69934225284. Its totient is φ = 13320804800.

The previous prime is 33302011993. The next prime is 33302012021. The reversal of 33302012020 is 2021020333.

It can be written as a sum of positive squares in 2 ways, for example, as 17745436944 + 15556575076 = 133212^2 + 124726^2 .

It is a super-2 number, since 2×33302012020² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33302011985 and 33302012003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33302012021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 832550281 + ... + 832550320.

It is an arithmetic number, because the mean of its divisors is an integer number (5827852107).

Almost surely, 2^33302012020 is an apocalyptic number.

It is an amenable number.

33302012020 is an abundant number, since it is smaller than the sum of its proper divisors (36632213264).

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

33302012020 is a wasteful number, since it uses less digits than its factorization.

33302012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665100610 (or 1665100608 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 33302012020 its reverse (2021020333), we get a palindrome (35323032353).

The spelling of 33302012020 in words is "thirty-three billion, three hundred two million, twelve thousand, twenty".