5200420221 has 48 divisors (see below), whose sum is σ = 8135442432. Its totient is φ = 3191680800.

The previous prime is 5200420171. The next prime is 5200420249. The reversal of 5200420221 is 1220240025.

5200420221 is a `hidden beast` number, since 5 + 20 + 0 + 420 + 221 = 666.

It is not a de Polignac number, because 5200420221 - 2¹³ = 5200412029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5200420194 and 5200420203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5200420721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1223526 + ... + 1227768.

It is an arithmetic number, because the mean of its divisors is an integer number (169488384).

Almost surely, 2^5200420221 is an apocalyptic number.

It is an amenable number.

5200420221 is a deficient number, since it is larger than the sum of its proper divisors (2935022211).

5200420221 is a wasteful number, since it uses less digits than its factorization.

5200420221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4494 (or 4491 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 5200420221 is about 72113.9391588062. The cubic root of 5200420221 is about 1732.5248776123.

Adding to 5200420221 its reverse (1220240025), we get a palindrome (6420660246).

The spelling of 5200420221 in words is "five billion, two hundred million, four hundred twenty thousand, two hundred twenty-one".