3221354556 has 48 divisors (see below), whose sum is σ = 9544756480. Its totient is φ = 920386800.

The previous prime is 3221354527. The next prime is 3221354557. The reversal of 3221354556 is 6554531223.

3221354556 is a `hidden beast` number, since 32 + 21 + 3 + 54 + 556 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 3221354556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221354557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2129770 + ... + 2131281.

Almost surely, 2^3221354556 is an apocalyptic number.

3221354556 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3221354556 is an abundant number, since it is smaller than the sum of its proper divisors (6323401924).

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

3221354556 is a wasteful number, since it uses less digits than its factorization.

3221354556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4261071 (or 4261063 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The square root of 3221354556 is about 56756.9780379470. The cubic root of 3221354556 is about 1476.8832871567.

Adding to 3221354556 its reverse (6554531223), we get a palindrome (9775885779).

The spelling of 3221354556 in words is "three billion, two hundred twenty-one million, three hundred fifty-four thousand, five hundred fifty-six".