5522421220 has 48 divisors (see below), whose sum is σ = 12087548928. Its totient is φ = 2116932480.

The previous prime is 5522421217. The next prime is 5522421221. The reversal of 5522421220 is 221242255.

It is a super-2 number, since 2×5522421220² = 60994272262212576800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5522421221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20622 + ... + 107098.

It is an arithmetic number, because the mean of its divisors is an integer number (251823936).

Almost surely, 2^5522421220 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 5522421220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6043774464).

5522421220 is an abundant number, since it is smaller than the sum of its proper divisors (6565127708).

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

5522421220 is a wasteful number, since it uses less digits than its factorization.

5522421220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86620 (or 86618 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 5522421220 is about 74312.9949605047. The cubic root of 5522421220 is about 1767.5695434000.

Adding to 5522421220 its reverse (221242255), we get a palindrome (5743663475).

The spelling of 5522421220 in words is "five billion, five hundred twenty-two million, four hundred twenty-one thousand, two hundred twenty".