20020201021220 has 24 divisors (see below), whose sum is σ = 42042546873600. Its totient is φ = 8008056650592.

The previous prime is 20020201021199. The next prime is 20020201021291. The reversal of 20020201021220 is 2212010202002.

It is a junction number, because it is equal to n+sod(n) for n = 20020201021195 and 20020201021204.

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, 6462551 + ... + 9044609.

It is an arithmetic number, because the mean of its divisors is an integer number (1751772786400).

Almost surely, 2^{20020201021220} is an apocalyptic number.

20020201021220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020201021220 is an abundant number, since it is smaller than the sum of its proper divisors (22022345852380).

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

20020201021220 is a wasteful number, since it uses less digits than its factorization.

20020201021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2969747 (or 2969745 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20020201021220 its reverse (2212010202002), we get a palindrome (22232211223222).

The spelling of 20020201021220 in words is "twenty trillion, twenty billion, two hundred one million, twenty-one thousand, two hundred twenty".