220201010020 has 48 divisors (see below), whose sum is σ = 468387764208. Its totient is φ = 86949273600.

The previous prime is 220201009991. The next prime is 220201010021. The reversal of 220201010020 is 20010102022.

It can be written as a sum of positive squares in 8 ways, for example, as 13670754084 + 206530255936 = 116922^2 + 454456^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 220201009979 and 220201010006.

It is not an unprimeable number, because it can be changed into a prime (220201010021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 519004 + ... + 842476.

It is an arithmetic number, because the mean of its divisors is an integer number (9758078421).

Almost surely, 2^220201010020 is an apocalyptic number.

220201010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220201010020 is an abundant number, since it is smaller than the sum of its proper divisors (248186754188).

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

220201010020 is a wasteful number, since it uses less digits than its factorization.

220201010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323920 (or 323918 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 220201010020 its reverse (20010102022), we get a palindrome (240211112042).

The spelling of 220201010020 in words is "two hundred twenty billion, two hundred one million, ten thousand, twenty".