5152221220 has 12 divisors (see below), whose sum is σ = 10819664604. Its totient is φ = 2060888480.

The previous prime is 5152221211. The next prime is 5152221227. The reversal of 5152221220 is 221222515.

It can be written as a sum of positive squares in 2 ways, for example, as 3286499584 + 1865721636 = 57328^2 + 43194^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5152221191 and 5152221200.

It is not an unprimeable number, because it can be changed into a prime (5152221227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128805511 + ... + 128805550.

It is an arithmetic number, because the mean of its divisors is an integer number (901638717).

Almost surely, 2^5152221220 is an apocalyptic number.

It is an amenable number.

5152221220 is an abundant number, since it is smaller than the sum of its proper divisors (5667443384).

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

5152221220 is a wasteful number, since it uses less digits than its factorization.

5152221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257611070 (or 257611068 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 5152221220 is about 71778.9747767409. The cubic root of 5152221220 is about 1727.1557415791.

Adding to 5152221220 its reverse (221222515), we get a palindrome (5373443735).

The spelling of 5152221220 in words is "five billion, one hundred fifty-two million, two hundred twenty-one thousand, two hundred twenty".