354412221 has 16 divisors (see below), whose sum is σ = 494363520. Its totient is φ = 225420800.

The previous prime is 354412217. The next prime is 354412229. The reversal of 354412221 is 122214453.

It is a cyclic number.

It is not a de Polignac number, because 354412221 - 2² = 354412217 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 354412191 and 354412200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354412229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21265 + ... + 34073.

It is an arithmetic number, because the mean of its divisors is an integer number (30897720).

Almost surely, 2^354412221 is an apocalyptic number.

It is an amenable number.

354412221 is a deficient number, since it is larger than the sum of its proper divisors (139951299).

354412221 is a wasteful number, since it uses less digits than its factorization.

354412221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13236.

The product of its digits is 1920, while the sum is 24.

The square root of 354412221 is about 18825.8391844826. The cubic root of 354412221 is about 707.6788718115.

Adding to 354412221 its reverse (122214453), we get a palindrome (476626674).

The spelling of 354412221 in words is "three hundred fifty-four million, four hundred twelve thousand, two hundred twenty-one".