2220202100020 has 12 divisors (see below), whose sum is σ = 4662424410084. Its totient is φ = 888080840000.

The previous prime is 2220202099961. The next prime is 2220202100069. The reversal of 2220202100020 is 200012020222.

It can be written as a sum of positive squares in 2 ways, for example, as 1479108386596 + 741093713424 = 1216186^2 + 860868^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55505052481 + ... + 55505052520.

It is an arithmetic number, because the mean of its divisors is an integer number (388535367507).

Almost surely, 2^{2220202100020} is an apocalyptic number.

2220202100020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220202100020 is an abundant number, since it is smaller than the sum of its proper divisors (2442222310064).

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

2220202100020 is a wasteful number, since it uses less digits than its factorization.

2220202100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111010105010 (or 111010105008 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 2220202100020 its reverse (200012020222), we get a palindrome (2420214120242).

The spelling of 2220202100020 in words is "two trillion, two hundred twenty billion, two hundred two million, one hundred thousand, twenty".