5012222121 has 24 divisors (see below), whose sum is σ = 7414807400. Its totient is φ = 3261689856.

The previous prime is 5012222119. The next prime is 5012222129. The reversal of 5012222121 is 1212222105.

5012222121 is a `hidden beast` number, since 501 + 22 + 22 + 121 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 359481600 + 4652740521 = 18960^2 + 68211^2 .

It is not a de Polignac number, because 5012222121 - 2¹ = 5012222119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5012222094 and 5012222103.

It is not an unprimeable number, because it can be changed into a prime (5012222129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24405 + ... + 103053.

Almost surely, 2^5012222121 is an apocalyptic number.

It is an amenable number.

5012222121 is a deficient number, since it is larger than the sum of its proper divisors (2402585279).

5012222121 is a wasteful number, since it uses less digits than its factorization.

5012222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78825 (or 78822 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 5012222121 is about 70797.0488156110. The cubic root of 5012222121 is about 1711.3681151372.

Adding to 5012222121 its reverse (1212222105), we get a palindrome (6224444226).

The spelling of 5012222121 in words is "five billion, twelve million, two hundred twenty-two thousand, one hundred twenty-one".