3220100020 has 12 divisors (see below), whose sum is σ = 6762210084. Its totient is φ = 1288040000.

The previous prime is 3220099997. The next prime is 3220100029. The reversal of 3220100020 is 200010223.

It can be written as a sum of positive squares in 2 ways, for example, as 741255076 + 2478844944 = 27226^2 + 49788^2 .

It is a super-3 number, since 3×3220100020³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220100029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80502481 + ... + 80502520.

It is an arithmetic number, because the mean of its divisors is an integer number (563517507).

Almost surely, 2^3220100020 is an apocalyptic number.

It is an amenable number.

3220100020 is an abundant number, since it is smaller than the sum of its proper divisors (3542110064).

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

3220100020 is a wasteful number, since it uses less digits than its factorization.

3220100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161005010 (or 161005008 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 3220100020 is about 56745.9251400486. The cubic root of 3220100020 is about 1476.6915413355.

Adding to 3220100020 its reverse (200010223), we get a palindrome (3420110243).

The spelling of 3220100020 in words is "three billion, two hundred twenty million, one hundred thousand, twenty".