3549452001221 has 32 divisors (see below), whose sum is σ = 4131591045120. Its totient is φ = 2986698312000.

The previous prime is 3549452001209. The next prime is 3549452001229. The reversal of 3549452001221 is 1221002549453.

It is a cyclic number.

It is not a de Polignac number, because 3549452001221 - 2¹⁰ = 3549452000197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3549452001229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41413550 + ... + 41499168.

It is an arithmetic number, because the mean of its divisors is an integer number (129112220160).

Almost surely, 2^{3549452001221} is an apocalyptic number.

It is an amenable number.

3549452001221 is a deficient number, since it is larger than the sum of its proper divisors (582139043899).

3549452001221 is a wasteful number, since it uses less digits than its factorization.

3549452001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86225.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 3549452001221 in words is "three trillion, five hundred forty-nine billion, four hundred fifty-two million, one thousand, two hundred twenty-one".