3321012121020 has 72 divisors (see below), whose sum is σ = 10989531025200. Its totient is φ = 805093847040.

The previous prime is 3321012121001. The next prime is 3321012121057. The reversal of 3321012121020 is 201212101233.

3321012121020 is a `hidden beast` number, since 332 + 1 + 0 + 121 + 210 + 2 + 0 = 666.

It is a super-2 number, since 2×3321012121020² (a number of 26 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 = 3321012120984 and 3321012121002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 838637445 + ... + 838641404.

It is an arithmetic number, because the mean of its divisors is an integer number (152632375350).

Almost surely, 2^{3321012121020} is an apocalyptic number.

3321012121020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3321012121020 is an abundant number, since it is smaller than the sum of its proper divisors (7668518904180).

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

3321012121020 is a wasteful number, since it uses less digits than its factorization.

3321012121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677278875 (or 1677278870 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 3321012121020 its reverse (201212101233), we get a palindrome (3522224222253).

The spelling of 3321012121020 in words is "three trillion, three hundred twenty-one billion, twelve million, one hundred twenty-one thousand, twenty".