2021002201200 has 120 divisors (see below), whose sum is σ = 6479476782976. Its totient is φ = 538473312000.

The previous prime is 2021002201199. The next prime is 2021002201201. The reversal of 2021002201200 is 21022001202.

It is an interprime number because it is at equal distance from previous prime (2021002201199) and next prime (2021002201201).

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021002201201) by changing a digit.

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, 686085 + ... + 2124315.

Almost surely, 2^{2021002201200} is an apocalyptic number.

2021002201200 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 2021002201200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3239738391488).

2021002201200 is an abundant number, since it is smaller than the sum of its proper divisors (4458474581776).

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

2021002201200 is a wasteful number, since it uses less digits than its factorization.

2021002201200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1439423 (or 1439412 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 2021002201200 its reverse (21022001202), we get a palindrome (2042024202402).

The spelling of 2021002201200 in words is "two trillion, twenty-one billion, two million, two hundred one thousand, two hundred".