4105451221 has 8 divisors (see below), whose sum is σ = 4214060640. Its totient is φ = 3998142768.

The previous prime is 4105451213. The next prime is 4105451243. The reversal of 4105451221 is 1221545014.

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 4105451221 - 2³ = 4105451213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4105451281) 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, 318846 + ... + 331471.

It is an arithmetic number, because the mean of its divisors is an integer number (526757580).

Almost surely, 2^4105451221 is an apocalyptic number.

It is an amenable number.

4105451221 is a deficient number, since it is larger than the sum of its proper divisors (108609419).

4105451221 is a wasteful number, since it uses less digits than its factorization.

4105451221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650483.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 4105451221 is about 64073.7951193778. The cubic root of 4105451221 is about 1601.2296824180.

Adding to 4105451221 its reverse (1221545014), we get a palindrome (5326996235).

The spelling of 4105451221 in words is "four billion, one hundred five million, four hundred fifty-one thousand, two hundred twenty-one".