220001022020 has 48 divisors (see below), whose sum is σ = 497578733568. Its totient is φ = 81224949120.

The previous prime is 220001022011. The next prime is 220001022071. The reversal of 220001022020 is 20220100022.

It is a junction number, because it is equal to n+sod(n) for n = 220001021992 and 220001022010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4731485 + ... + 4777755.

It is an arithmetic number, because the mean of its divisors is an integer number (10366223616).

Almost surely, 2^220001022020 is an apocalyptic number.

220001022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220001022020 is an abundant number, since it is smaller than the sum of its proper divisors (277577711548).

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

220001022020 is a wasteful number, since it uses less digits than its factorization.

220001022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64580 (or 64578 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 220001022020 its reverse (20220100022), we get a palindrome (240221122042).

The spelling of 220001022020 in words is "two hundred twenty billion, one million, twenty-two thousand, twenty".