5221279220 has 24 divisors (see below), whose sum is σ = 11441412864. Its totient is φ = 1997706656.

The previous prime is 5221279213. The next prime is 5221279313. The reversal of 5221279220 is 229721225.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5674844 + ... + 5675763.

It is an arithmetic number, because the mean of its divisors is an integer number (476725536).

Almost surely, 2^5221279220 is an apocalyptic number.

It is an amenable number.

5221279220 is an abundant number, since it is smaller than the sum of its proper divisors (6220133644).

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

5221279220 is a wasteful number, since it uses less digits than its factorization.

5221279220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11350639 (or 11350637 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 5221279220 is about 72258.4197170129. The cubic root of 5221279220 is about 1734.8381858186.

The spelling of 5221279220 in words is "five billion, two hundred twenty-one million, two hundred seventy-nine thousand, two hundred twenty".