551220124222 has 8 divisors (see below), whose sum is σ = 834557571576. Its totient is φ = 273034267032.

The previous prime is 551220124207. The next prime is 551220124237. The reversal of 551220124222 is 222421022155.

It is an interprime number because it is at equal distance from previous prime (551220124207) and next prime (551220124237).

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

It is a super-2 number, since 2×551220124222² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1287897273 + ... + 1287897700.

It is an arithmetic number, because the mean of its divisors is an integer number (104319696447).

Almost surely, 2^551220124222 is an apocalyptic number.

551220124222 is a deficient number, since it is larger than the sum of its proper divisors (283337447354).

551220124222 is a wasteful number, since it uses less digits than its factorization.

551220124222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2575795082.

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 551220124222 its reverse (222421022155), we get a palindrome (773641146377).

The spelling of 551220124222 in words is "five hundred fifty-one billion, two hundred twenty million, one hundred twenty-four thousand, two hundred twenty-two".