20220000201220 has 48 divisors (see below), whose sum is σ = 42508001875248. Its totient is φ = 8079242270720.

The previous prime is 20220000201199. The next prime is 20220000201257. The reversal of 20220000201220 is 2210200002202.

It can be written as a sum of positive squares in 8 ways, for example, as 81320788224 + 20138679412996 = 285168^2 + 4487614^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20220000201220.

It is an unprimeable number.

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, 74983272 + ... + 75252448.

It is an arithmetic number, because the mean of its divisors is an integer number (885583372401).

Almost surely, 2^{20220000201220} is an apocalyptic number.

20220000201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20220000201220 is an abundant number, since it is smaller than the sum of its proper divisors (22288001674028).

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

20220000201220 is a wasteful number, since it uses less digits than its factorization.

20220000201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273240 (or 273238 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 20220000201220 its reverse (2210200002202), we get a palindrome (22430200203422).

The spelling of 20220000201220 in words is "twenty trillion, two hundred twenty billion, two hundred one thousand, two hundred twenty".