3202120012 has 72 divisors (see below), whose sum is σ = 7125188784. Its totient is φ = 1247799168.

The previous prime is 3202119979. The next prime is 3202120073. The reversal of 3202120012 is 2100212023.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 3202119974 and 3202120001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 161338 + ... + 180094.

Almost surely, 2^3202120012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3202120012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3562594392).

3202120012 is an abundant number, since it is smaller than the sum of its proper divisors (3923068772).

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

3202120012 is a wasteful number, since it uses less digits than its factorization.

3202120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18855 (or 18846 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 3202120012 is about 56587.2778281479. The cubic root of 3202120012 is about 1473.9379522420.

Adding to 3202120012 its reverse (2100212023), we get a palindrome (5302332035).

The spelling of 3202120012 in words is "three billion, two hundred two million, one hundred twenty thousand, twelve".