2201021201000 has 32 divisors (see below), whose sum is σ = 5150389612680. Its totient is φ = 880408480000.

The previous prime is 2201021200999. The next prime is 2201021201003. The reversal of 2201021201000 is 1021201022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 136011964804 + 2065009236196 = 368798^2 + 1437014^2 .

It is not an unprimeable number, because it can be changed into a prime (2201021201003) 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 7 ways as a sum of consecutive naturals, for example, 1100509601 + ... + 1100511600.

Almost surely, 2^{2201021201000} is an apocalyptic number.

2201021201000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201021201000 is an abundant number, since it is smaller than the sum of its proper divisors (2949368411680).

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

2201021201000 is a wasteful number, since it uses less digits than its factorization.

2201021201000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2201021222 (or 2201021208 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2201021201000 its reverse (1021201022), we get a palindrome (2202042402022).

The spelling of 2201021201000 in words is "two trillion, two hundred one billion, twenty-one million, two hundred one thousand".