5120222420 has 48 divisors (see below), whose sum is σ = 11013296448. Its totient is φ = 1998501120.

The previous prime is 5120222417. The next prime is 5120222431. The reversal of 5120222420 is 242220215.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 5120222392 and 5120222401.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1133807 + ... + 1138313.

It is an arithmetic number, because the mean of its divisors is an integer number (229443676).

Almost surely, 2^5120222420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5120222420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5506648224).

5120222420 is an abundant number, since it is smaller than the sum of its proper divisors (5893074028).

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

5120222420 is a wasteful number, since it uses less digits than its factorization.

5120222420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5880 (or 5878 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 5120222420 is about 71555.7294701130. The cubic root of 5120222420 is about 1723.5727094435.

Adding to 5120222420 its reverse (242220215), we get a palindrome (5362442635).

The spelling of 5120222420 in words is "five billion, one hundred twenty million, two hundred twenty-two thousand, four hundred twenty".