6620222224 has 120 divisors (see below), whose sum is σ = 16624614528. Its totient is φ = 2524273920.

The previous prime is 6620222131. The next prime is 6620222239. The reversal of 6620222224 is 4222220266.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 6620222192 and 6620222201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 397162 + ... + 413494.

Almost surely, 2^6620222224 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 6620222224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8312307264).

6620222224 is an abundant number, since it is smaller than the sum of its proper divisors (10004392304).

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

6620222224 is a wasteful number, since it uses less digits than its factorization.

6620222224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16413 (or 16400 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 6620222224 is about 81364.7480423801. The cubic root of 6620222224 is about 1877.6912794280.

The spelling of 6620222224 in words is "six billion, six hundred twenty million, two hundred twenty-two thousand, two hundred twenty-four".