3553241221 has 8 divisors (see below), whose sum is σ = 3605442624. Its totient is φ = 3501099840.

The previous prime is 3553241207. The next prime is 3553241267. The reversal of 3553241221 is 1221423553.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3553241221 - 2⁵ = 3553241189 is a prime.

It is a super-2 number, since 2×3553241221² = 25251046349227141682, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3553241221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3553241921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112086 + ... + 140248.

It is an arithmetic number, because the mean of its divisors is an integer number (450680328).

Almost surely, 2^3553241221 is an apocalyptic number.

It is an amenable number.

3553241221 is a deficient number, since it is larger than the sum of its proper divisors (52201403).

3553241221 is a wasteful number, since it uses less digits than its factorization.

3553241221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30011.

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

The square root of 3553241221 is about 59609.0699558381. The cubic root of 3553241221 is about 1525.9544283952.

Adding to 3553241221 its reverse (1221423553), we get a palindrome (4774664774).

The spelling of 3553241221 in words is "three billion, five hundred fifty-three million, two hundred forty-one thousand, two hundred twenty-one".