3133221000 has 512 divisors, whose sum is σ = 12579840000. Its totient is φ = 631065600.

The previous prime is 3133220999. The next prime is 3133221037. The reversal of 3133221000 is 1223313.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6278751 + ... + 6279249.

It is an arithmetic number, because the mean of its divisors is an integer number (24570000).

Almost surely, 2^3133221000 is an apocalyptic number.

3133221000 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 3133221000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6289920000).

3133221000 is an abundant number, since it is smaller than the sum of its proper divisors (9446619000).

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

3133221000 is a wasteful number, since it uses less digits than its factorization.

3133221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 552 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 3133221000 is about 55975.1820005974. The cubic root of 3133221000 is about 1463.2897918366.

Adding to 3133221000 its reverse (1223313), we get a palindrome (3134444313).

The spelling of 3133221000 in words is "three billion, one hundred thirty-three million, two hundred twenty-one thousand".