551320404222 has 32 divisors (see below), whose sum is σ = 1260293836032. Its totient is φ = 157503501504.

The previous prime is 551320404197. The next prime is 551320404259. The reversal of 551320404222 is 222404023155.

It is a super-2 number, since 2×551320404222² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 551320404222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286503 + ... + 1088450.

It is an arithmetic number, because the mean of its divisors is an integer number (39384182376).

Almost surely, 2^551320404222 is an apocalyptic number.

551320404222 is an abundant number, since it is smaller than the sum of its proper divisors (708973431810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551320404222 is a wasteful number, since it uses less digits than its factorization.

551320404222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384512.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 551320404222 its reverse (222404023155), we get a palindrome (773724427377).

The spelling of 551320404222 in words is "five hundred fifty-one billion, three hundred twenty million, four hundred four thousand, two hundred twenty-two".