220000001020 has 24 divisors (see below), whose sum is σ = 466485443424. Its totient is φ = 87145630656.

The previous prime is 220000000903. The next prime is 220000001033. The reversal of 220000001020 is 20100000022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 220000000994 and 220000001012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53395999 + ... + 53400118.

It is an arithmetic number, because the mean of its divisors is an integer number (19436893476).

Almost surely, 2^220000001020 is an apocalyptic number.

220000001020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220000001020 is an abundant number, since it is smaller than the sum of its proper divisors (246485442404).

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

220000001020 is a wasteful number, since it uses less digits than its factorization.

220000001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106796229 (or 106796227 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

Adding to 220000001020 its reverse (20100000022), we get a palindrome (240100001042).

The spelling of 220000001020 in words is "two hundred twenty billion, one thousand, twenty".