220220220001020 has 48 divisors (see below), whose sum is σ = 630956537312640. Its totient is φ = 57359685208896.

The previous prime is 220220220000983. The next prime is 220220220001043. The reversal of 220220220001020 is 20100022022022.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42678334630 + ... + 42678339789.

It is an arithmetic number, because the mean of its divisors is an integer number (13144927860680).

Almost surely, 2^{220220220001020} is an apocalyptic number.

220220220001020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220220220001020 is an abundant number, since it is smaller than the sum of its proper divisors (410736317311620).

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

220220220001020 is a wasteful number, since it uses less digits than its factorization.

220220220001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85356674474 (or 85356674472 counting only the distinct ones).

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

Adding to 220220220001020 its reverse (20100022022022), we get a palindrome (240320242023042).

The spelling of 220220220001020 in words is "two hundred twenty trillion, two hundred twenty billion, two hundred twenty million, one thousand, twenty".