5151222444 has 12 divisors (see below), whose sum is σ = 12019519064. Its totient is φ = 1717074144.

The previous prime is 5151222437. The next prime is 5151222457. The reversal of 5151222444 is 4442221515.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214634257 + ... + 214634280.

Almost surely, 2^5151222444 is an apocalyptic number.

It is an amenable number.

5151222444 is an abundant number, since it is smaller than the sum of its proper divisors (6868296620).

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

5151222444 is a wasteful number, since it uses less digits than its factorization.

5151222444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429268544 (or 429268542 counting only the distinct ones).

The product of its digits is 12800, while the sum is 30.

The square root of 5151222444 is about 71772.0171376004. The cubic root of 5151222444 is about 1727.0441293178.

Adding to 5151222444 its reverse (4442221515), we get a palindrome (9593443959).

The spelling of 5151222444 in words is "five billion, one hundred fifty-one million, two hundred twenty-two thousand, four hundred forty-four".