200151221 has 8 divisors (see below), whose sum is σ = 215591424. Its totient is φ = 185272560.

The previous prime is 200151209. The next prime is 200151227. The reversal of 200151221 is 122151002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200151221 is a prime.

It is a super-2 number, since 2×200151221² = 80121022535581682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200151196 and 200151205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200151227) 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, 139646 + ... + 141071.

It is an arithmetic number, because the mean of its divisors is an integer number (26948928).

Almost surely, 2^200151221 is an apocalyptic number.

It is an amenable number.

200151221 is a deficient number, since it is larger than the sum of its proper divisors (15440203).

200151221 is a wasteful number, since it uses less digits than its factorization.

200151221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280771.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 200151221 is about 14147.4810832176. The cubic root of 200151221 is about 584.9509014726.

The spelling of 200151221 in words is "two hundred million, one hundred fifty-one thousand, two hundred twenty-one".