20012201200 has 60 divisors (see below), whose sum is σ = 48258306360. Its totient is φ = 7975079680.

The previous prime is 20012201189. The next prime is 20012201201. The reversal of 20012201200 is 210221002.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012201201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14607 + ... + 200593.

It is an arithmetic number, because the mean of its divisors is an integer number (804305106).

Almost surely, 2^20012201200 is an apocalyptic number.

20012201200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20012201200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24129153180).

20012201200 is an abundant number, since it is smaller than the sum of its proper divisors (28246105160).

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

20012201200 is a wasteful number, since it uses less digits than its factorization.

20012201200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186274 (or 186263 counting only the distinct ones).

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

Adding to 20012201200 its reverse (210221002), we get a palindrome (20222422202).

The spelling of 20012201200 in words is "twenty billion, twelve million, two hundred one thousand, two hundred".