2221302020 has 48 divisors (see below), whose sum is σ = 5378341248. Its totient is φ = 754844160.

The previous prime is 2221301947. The next prime is 2221302029. The reversal of 2221302020 is 202031222.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 2221301986 and 2221302004.

It is not an unprimeable number, because it can be changed into a prime (2221302029) 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, 54386 + ... + 86025.

It is an arithmetic number, because the mean of its divisors is an integer number (112048776).

Almost surely, 2^2221302020 is an apocalyptic number.

2221302020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221302020 is an abundant number, since it is smaller than the sum of its proper divisors (3157039228).

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

2221302020 is a wasteful number, since it uses less digits than its factorization.

2221302020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140540 (or 140538 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2221302020 is about 47130.6908500183. The cubic root of 2221302020 is about 1304.7757320262.

Adding to 2221302020 its reverse (202031222), we get a palindrome (2423333242).

The spelling of 2221302020 in words is "two billion, two hundred twenty-one million, three hundred two thousand, twenty".