3220121576 has 32 divisors (see below), whose sum is σ = 6954608640. Its totient is φ = 1369182528.

The previous prime is 3220121557. The next prime is 3220121603. The reversal of 3220121576 is 6751210223.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219275 + ... + 233498.

It is an arithmetic number, because the mean of its divisors is an integer number (217331520).

Almost surely, 2^3220121576 is an apocalyptic number.

It is an amenable number.

3220121576 is an abundant number, since it is smaller than the sum of its proper divisors (3734487064).

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

3220121576 is a wasteful number, since it uses less digits than its factorization.

3220121576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452913 (or 452909 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 3220121576 is about 56746.1150740736. The cubic root of 3220121576 is about 1476.6948364186.

Adding to 3220121576 its reverse (6751210223), we get a palindrome (9971331799).

The spelling of 3220121576 in words is "three billion, two hundred twenty million, one hundred twenty-one thousand, five hundred seventy-six".