356101221 has 8 divisors (see below), whose sum is σ = 542630464. Its totient is φ = 203486400.

The previous prime is 356101219. The next prime is 356101231. The reversal of 356101221 is 122101653.

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

It is not a de Polignac number, because 356101221 - 2¹ = 356101219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 16957201 = 356101221 / (3 + 5 + 6 + 1 + 0 + 1 + 2 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (356101231) 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, 8478580 + ... + 8478621.

It is an arithmetic number, because the mean of its divisors is an integer number (67828808).

Almost surely, 2^356101221 is an apocalyptic number.

It is an amenable number.

356101221 is a deficient number, since it is larger than the sum of its proper divisors (186529243).

356101221 is a wasteful number, since it uses less digits than its factorization.

356101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16957211.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 356101221 is about 18870.6444246083. The cubic root of 356101221 is about 708.8012709225.

Adding to 356101221 its reverse (122101653), we get a palindrome (478202874).

The spelling of 356101221 in words is "three hundred fifty-six million, one hundred one thousand, two hundred twenty-one".