551122201 has 8 divisors (see below), whose sum is σ = 666904320. Its totient is φ = 444602688.

The previous prime is 551122199. The next prime is 551122207. The reversal of 551122201 is 102221155.

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 551122201 - 2¹ = 551122199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551122207) 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, 2315521 + ... + 2315758.

It is an arithmetic number, because the mean of its divisors is an integer number (83363040).

Almost surely, 2^551122201 is an apocalyptic number.

It is an amenable number.

551122201 is a deficient number, since it is larger than the sum of its proper divisors (115782119).

551122201 is a wasteful number, since it uses less digits than its factorization.

551122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4631303.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 551122201 is about 23475.9920131184. The cubic root of 551122201 is about 819.8781303120.

Adding to 551122201 its reverse (102221155), we get a palindrome (653343356).

The spelling of 551122201 in words is "five hundred fifty-one million, one hundred twenty-two thousand, two hundred one".