3011220000 has 180 divisors, whose sum is σ = 10701160470. Its totient is φ = 802944000.

The previous prime is 3011219983. The next prime is 3011220029. The reversal of 3011220000 is 221103.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 104284944 + 2906935056 = 10212^2 + 53916^2 .

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 171636 + ... + 188364.

Almost surely, 2^3011220000 is an apocalyptic number.

3011220000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3011220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5350580235).

3011220000 is an abundant number, since it is smaller than the sum of its proper divisors (7689940470).

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

3011220000 is a wasteful number, since it uses less digits than its factorization.

3011220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16765 (or 16739 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 3011220000 is about 54874.5842808854. The cubic root of 3011220000 is about 1444.0453379053.

Adding to 3011220000 its reverse (221103), we get a palindrome (3011441103).

The spelling of 3011220000 in words is "three billion, eleven million, two hundred twenty thousand".