215222201 has 8 divisors (see below), whose sum is σ = 226351104. Its totient is φ = 204240960.

The previous prime is 215222197. The next prime is 215222221. The reversal of 215222201 is 102222512.

215222201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 215222201 - 2² = 215222197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 215222201.

It is not an unprimeable number, because it can be changed into a prime (215222221) 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, 33920 + ... + 39761.

It is an arithmetic number, because the mean of its divisors is an integer number (28293888).

Almost surely, 2^215222201 is an apocalyptic number.

It is an amenable number.

215222201 is a deficient number, since it is larger than the sum of its proper divisors (11128903).

215222201 is a wasteful number, since it uses less digits than its factorization.

215222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73831.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 215222201 is about 14670.4533331455. The cubic root of 215222201 is about 599.2789495650.

Adding to 215222201 its reverse (102222512), we get a palindrome (317444713).

The spelling of 215222201 in words is "two hundred fifteen million, two hundred twenty-two thousand, two hundred one".