354450235221 has 12 divisors (see below), whose sum is σ = 512614982880. Its totient is φ = 236008783080.

The previous prime is 354450235213. The next prime is 354450235231. The reversal of 354450235221 is 122532054453.

354450235221 is a `hidden beast` number, since 354 + 4 + 50 + 2 + 35 + 221 = 666.

It is not a de Polignac number, because 354450235221 - 2³ = 354450235213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354450235231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24273441 + ... + 24288038.

It is an arithmetic number, because the mean of its divisors is an integer number (42717915240).

Almost surely, 2^354450235221 is an apocalyptic number.

It is an amenable number.

354450235221 is a deficient number, since it is larger than the sum of its proper divisors (158164747659).

354450235221 is a wasteful number, since it uses less digits than its factorization.

354450235221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48562296 (or 48562293 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 354450235221 its reverse (122532054453), we get a palindrome (476982289674).

The spelling of 354450235221 in words is "three hundred fifty-four billion, four hundred fifty million, two hundred thirty-five thousand, two hundred twenty-one".