3220301111220 has 36 divisors (see below), whose sum is σ = 9768246704580. Its totient is φ = 858746962944.

The previous prime is 3220301111207. The next prime is 3220301111243. The reversal of 3220301111220 is 221111030223.

3220301111220 is a `hidden beast` number, since 32 + 2 + 0 + 301 + 111 + 220 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 936950433444 + 2283350677776 = 967962^2 + 1511076^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 = 3220301111193 and 3220301111202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8945280685 + ... + 8945281044.

Almost surely, 2^{3220301111220} is an apocalyptic number.

3220301111220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3220301111220 is an abundant number, since it is smaller than the sum of its proper divisors (6547945593360).

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

3220301111220 is a wasteful number, since it uses less digits than its factorization.

3220301111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17890561744 (or 17890561739 counting only the distinct ones).

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

Adding to 3220301111220 its reverse (221111030223), we get a palindrome (3441412141443).

The spelling of 3220301111220 in words is "three trillion, two hundred twenty billion, three hundred one million, one hundred eleven thousand, two hundred twenty".