33002312121020 has 24 divisors (see below), whose sum is σ = 75605296859568. Its totient is φ = 12000840771200.

The previous prime is 33002312121007. The next prime is 33002312121029. The reversal of 33002312121020 is 2012121320033.

It is a super-2 number, since 2×33002312121020² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 33002312120983 and 33002312121001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33002312121029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75005254601 + ... + 75005255040.

It is an arithmetic number, because the mean of its divisors is an integer number (3150220702482).

Almost surely, 2^{33002312121020} is an apocalyptic number.

It is an amenable number.

33002312121020 is an abundant number, since it is smaller than the sum of its proper divisors (42602984738548).

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

33002312121020 is a wasteful number, since it uses less digits than its factorization.

33002312121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150010509661 (or 150010509659 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 33002312121020 its reverse (2012121320033), we get a palindrome (35014433441053).

The spelling of 33002312121020 in words is "thirty-three trillion, two billion, three hundred twelve million, one hundred twenty-one thousand, twenty".