5551121110 has 16 divisors (see below), whose sum is σ = 9998782416. Its totient is φ = 2218945248.

The previous prime is 5551121099. The next prime is 5551121117. The reversal of 5551121110 is 111211555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5551121117) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 172329 + ... + 201988.

It is an arithmetic number, because the mean of its divisors is an integer number (624923901).

Almost surely, 2^5551121110 is an apocalyptic number.

5551121110 is a deficient number, since it is larger than the sum of its proper divisors (4447661306).

5551121110 is a wasteful number, since it uses less digits than its factorization.

5551121110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375807.

The product of its (nonzero) digits is 250, while the sum is 22.

The square root of 5551121110 is about 74505.8461464602. The cubic root of 5551121110 is about 1770.6262597131.

Adding to 5551121110 its reverse (111211555), we get a palindrome (5662332665).

The spelling of 5551121110 in words is "five billion, five hundred fifty-one million, one hundred twenty-one thousand, one hundred ten".