12201200010021 has 32 divisors (see below), whose sum is σ = 18250557494400. Its totient is φ = 7185454202880.

The previous prime is 12201200010019. The next prime is 12201200010047. The reversal of 12201200010021 is 12001000210221.

It is not a de Polignac number, because 12201200010021 - 2¹ = 12201200010019 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12201200009979 and 12201200010006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201200010061) 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 31 ways as a sum of consecutive naturals, for example, 5558316 + ... + 7436213.

It is an arithmetic number, because the mean of its divisors is an integer number (570329921700).

Almost surely, 2^{12201200010021} is an apocalyptic number.

12201200010021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12201200010021 is a deficient number, since it is larger than the sum of its proper divisors (6049357484379).

12201200010021 is a wasteful number, since it uses less digits than its factorization.

12201200010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12995349.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12201200010021 its reverse (12001000210221), we get a palindrome (24202200220242).

The spelling of 12201200010021 in words is "twelve trillion, two hundred one billion, two hundred million, ten thousand, twenty-one".