3220012100020 has 12 divisors (see below), whose sum is σ = 6762025410084. Its totient is φ = 1288004840000.

The previous prime is 3220012099957. The next prime is 3220012100069. The reversal of 3220012100020 is 200012100223.

It can be written as a sum of positive squares in 2 ways, for example, as 775998904464 + 2444013195556 = 880908^2 + 1563334^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80500302481 + ... + 80500302520.

It is an arithmetic number, because the mean of its divisors is an integer number (563502117507).

Almost surely, 2^{3220012100020} is an apocalyptic number.

It is an amenable number.

3220012100020 is an abundant number, since it is smaller than the sum of its proper divisors (3542013310064).

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

3220012100020 is a wasteful number, since it uses less digits than its factorization.

3220012100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161000605010 (or 161000605008 counting only the distinct ones).

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

Adding to 3220012100020 its reverse (200012100223), we get a palindrome (3420024200243).

The spelling of 3220012100020 in words is "three trillion, two hundred twenty billion, twelve million, one hundred thousand, twenty".