3101220000 has 240 divisors, whose sum is σ = 11304881280. Its totient is φ = 826848000.

The previous prime is 3101219983. The next prime is 3101220007. The reversal of 3101220000 is 221013.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is not an unprimeable number, because it can be changed into a prime (3101220007) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 537129 + ... + 542871.

It is an arithmetic number, because the mean of its divisors is an integer number (47103672).

Almost surely, 2^3101220000 is an apocalyptic number.

3101220000 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 3101220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5652440640).

3101220000 is an abundant number, since it is smaller than the sum of its proper divisors (8203661280).

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

3101220000 is an equidigital number, since it uses as much as digits as its factorization.

3101220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5782 (or 5753 counting only the distinct ones).

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

The square root of 3101220000 is about 55688.5984740144. The cubic root of 3101220000 is about 1458.2909883396.

Adding to 3101220000 its reverse (221013), we get a palindrome (3101441013).

The spelling of 3101220000 in words is "three billion, one hundred one million, two hundred twenty thousand".