412621221 has 8 divisors (see below), whose sum is σ = 550369120. Its totient is φ = 274977072.

The previous prime is 412621217. The next prime is 412621273. The reversal of 412621221 is 122126214.

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

It is not a de Polignac number, because 412621221 - 2² = 412621217 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 (412621021) 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, 16126 + ... + 32943.

It is an arithmetic number, because the mean of its divisors is an integer number (68796140).

Almost surely, 2^412621221 is an apocalyptic number.

It is an amenable number.

412621221 is a deficient number, since it is larger than the sum of its proper divisors (137747899).

412621221 is a wasteful number, since it uses less digits than its factorization.

412621221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51875.

The product of its digits is 384, while the sum is 21.

The square root of 412621221 is about 20313.0800471027. The cubic root of 412621221 is about 744.4756883243.

Adding to 412621221 its reverse (122126214), we get a palindrome (534747435).

It can be divided in two parts, 41 and 2621221, that added together give a palindrome (2621262).

The spelling of 412621221 in words is "four hundred twelve million, six hundred twenty-one thousand, two hundred twenty-one".