370221 has 4 divisors (see below), whose sum is σ = 493632. Its totient is φ = 246812.

The previous prime is 370217. The next prime is 370241. The reversal of 370221 is 122073.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 370221 - 2² = 370217 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 370221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (370241) 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, 61701 + ... + 61706.

It is an arithmetic number, because the mean of its divisors is an integer number (123408).

2³⁷⁰²²¹ is an apocalyptic number.

It is an amenable number.

370221 is a deficient number, since it is larger than the sum of its proper divisors (123411).

370221 is a wasteful number, since it uses less digits than its factorization.

370221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123410.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 370221 is about 608.4578867925. The cubic root of 370221 is about 71.8048341084.

Adding to 370221 its reverse (122073), we get a palindrome (492294).

The spelling of 370221 in words is "three hundred seventy thousand, two hundred twenty-one", and thus it is an iban number.