33213323020020 has 288 divisors, whose sum is σ = 111246490091520. Its totient is φ = 7338269652480.

The previous prime is 33213323019967. The next prime is 33213323020069. The reversal of 33213323020020 is 2002032331233.

It is a super-2 number, since 2×33213323020020² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6927037 + ... + 10696283.

It is an arithmetic number, because the mean of its divisors is an integer number (386272535040).

Almost surely, 2^{33213323020020} is an apocalyptic number.

33213323020020 is a gapful number since it is divisible by the number (30) 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 33213323020020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55623245045760).

33213323020020 is an abundant number, since it is smaller than the sum of its proper divisors (78033167071500).

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

33213323020020 is a wasteful number, since it uses less digits than its factorization.

33213323020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3769375 (or 3769360 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 33213323020020 its reverse (2002032331233), we get a palindrome (35215355351253).

The spelling of 33213323020020 in words is "thirty-three trillion, two hundred thirteen billion, three hundred twenty-three million, twenty thousand, twenty".