20021202201200 has 120 divisors (see below), whose sum is σ = 49764093800400. Its totient is φ = 7731626721280.

The previous prime is 20021202201181. The next prime is 20021202201227. The reversal of 20021202201200 is 210220212002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138768299 + ... + 138912501.

It is an arithmetic number, because the mean of its divisors is an integer number (414700781670).

Almost surely, 2^{20021202201200} is an apocalyptic number.

20021202201200 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 20021202201200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24882046900200).

20021202201200 is an abundant number, since it is smaller than the sum of its proper divisors (29742891599200).

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

20021202201200 is a wasteful number, since it uses less digits than its factorization.

20021202201200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156219 (or 156208 counting only the distinct ones).

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

Adding to 20021202201200 its reverse (210220212002), we get a palindrome (20231422413202).

The spelling of 20021202201200 in words is "twenty trillion, twenty-one billion, two hundred two million, two hundred one thousand, two hundred".