2220202001220 has 48 divisors (see below), whose sum is σ = 7104646405248. Its totient is φ = 507474743040.

The previous prime is 2220202001209. The next prime is 2220202001221. The reversal of 2220202001220 is 221002020222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2220202001220.

It is not an unprimeable number, because it can be changed into a prime (2220202001221) 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, 2643097201 + ... + 2643098040.

It is an arithmetic number, because the mean of its divisors is an integer number (148013466776).

Almost surely, 2^{2220202001220} is an apocalyptic number.

2220202001220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220202001220 is an abundant number, since it is smaller than the sum of its proper divisors (4884444404028).

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

2220202001220 is a wasteful number, since it uses less digits than its factorization.

2220202001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5286195260 (or 5286195258 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 2220202001220 its reverse (221002020222), we get a palindrome (2441204021442).

The spelling of 2220202001220 in words is "two trillion, two hundred twenty billion, two hundred two million, one thousand, two hundred twenty".