354110221 has 4 divisors (see below), whose sum is σ = 374940252. Its totient is φ = 333280192.

The previous prime is 354110219. The next prime is 354110249. The reversal of 354110221 is 122011453.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122011453 = 10133 ⋅12041.

It can be written as a sum of positive squares in 2 ways, for example, as 236821321 + 117288900 = 15389^2 + 10830^2 .

It is a cyclic number.

It is not a de Polignac number, because 354110221 - 2¹ = 354110219 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 (354110291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10414990 + ... + 10415023.

It is an arithmetic number, because the mean of its divisors is an integer number (93735063).

Almost surely, 2^354110221 is an apocalyptic number.

It is an amenable number.

354110221 is a deficient number, since it is larger than the sum of its proper divisors (20830031).

354110221 is a wasteful number, since it uses less digits than its factorization.

354110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20830030.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 354110221 is about 18817.8165842905. The cubic root of 354110221 is about 707.4778067431.

Adding to 354110221 its reverse (122011453), we get a palindrome (476121674).

The spelling of 354110221 in words is "three hundred fifty-four million, one hundred ten thousand, two hundred twenty-one".