3554221312 has 36 divisors (see below), whose sum is σ = 7109032000. Its totient is φ = 1773485568.

The previous prime is 3554221291. The next prime is 3554221313. The reversal of 3554221312 is 2131224553.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3554221313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113833 + ... + 141655.

Almost surely, 2^3554221312 is an apocalyptic number.

3554221312 is a gapful number since it is divisible by the number (32) 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 3554221312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3554516000).

3554221312 is an abundant number, since it is smaller than the sum of its proper divisors (3554810688).

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

3554221312 is an equidigital number, since it uses as much as digits as its factorization.

3554221312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28338 (or 28324 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 3554221312 is about 59617.2903778761. The cubic root of 3554221312 is about 1526.0947169019.

Adding to 3554221312 its reverse (2131224553), we get a palindrome (5685445865).

It can be divided in two parts, 355422 and 1312, that multiplied together give a palindrome (466313664).

The spelling of 3554221312 in words is "three billion, five hundred fifty-four million, two hundred twenty-one thousand, three hundred twelve".