2220204224020 has 12 divisors (see below), whose sum is σ = 4662428870484. Its totient is φ = 888081689600.

The previous prime is 2220204223999. The next prime is 2220204224027. The reversal of 2220204224020 is 204224020222.

It can be written as a sum of positive squares in 2 ways, for example, as 732184839684 + 1488019384336 = 855678^2 + 1219844^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2220204223982 and 2220204224000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220204224027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55505105581 + ... + 55505105620.

It is an arithmetic number, because the mean of its divisors is an integer number (388535739207).

Almost surely, 2^{2220204224020} is an apocalyptic number.

2220204224020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220204224020 is an abundant number, since it is smaller than the sum of its proper divisors (2442224646464).

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

2220204224020 is a wasteful number, since it uses less digits than its factorization.

2220204224020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111010211210 (or 111010211208 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 2220204224020 its reverse (204224020222), we get a palindrome (2424428244242).

The spelling of 2220204224020 in words is "two trillion, two hundred twenty billion, two hundred four million, two hundred twenty-four thousand, twenty".