20210201220220 has 48 divisors (see below), whose sum is σ = 47376471719808. Its totient is φ = 7178253284160.

The previous prime is 20210201220193. The next prime is 20210201220229. The reversal of 20210201220220 is 2202210201202.

It is a junction number, because it is equal to n+sod(n) for n = 20210201220194 and 20210201220203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210201220229) by changing a digit.

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, 1068182994 + ... + 1068201913.

It is an arithmetic number, because the mean of its divisors is an integer number (987009827496).

Almost surely, 2^{20210201220220} is an apocalyptic number.

20210201220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20210201220220 is an abundant number, since it is smaller than the sum of its proper divisors (27166270499588).

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

20210201220220 is a wasteful number, since it uses less digits than its factorization.

20210201220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136384970 (or 2136384968 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20210201220220 its reverse (2202210201202), we get a palindrome (22412411421422).

The spelling of 20210201220220 in words is "twenty trillion, two hundred ten billion, two hundred one million, two hundred twenty thousand, two hundred twenty".