212201201112021 has 24 divisors (see below), whose sum is σ = 334504645577856. Its totient is φ = 128557944191040.

The previous prime is 212201201112013. The next prime is 212201201112049. The reversal of 212201201112021 is 120211102102212.

212201201112021 is a `hidden beast` number, since 212 + 20 + 120 + 111 + 202 + 1 = 666.

It is not a de Polignac number, because 212201201112021 - 2³ = 212201201112013 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 212201201111985 and 212201201112003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212201201112071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 406774365 + ... + 407295698.

It is an arithmetic number, because the mean of its divisors is an integer number (13937693565744).

Almost surely, 2^{212201201112021} is an apocalyptic number.

It is an amenable number.

212201201112021 is a deficient number, since it is larger than the sum of its proper divisors (122303444465835).

212201201112021 is a wasteful number, since it uses less digits than its factorization.

212201201112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814072713 (or 814072710 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 212201201112021 its reverse (120211102102212), we get a palindrome (332412303214233).

The spelling of 212201201112021 in words is "two hundred twelve trillion, two hundred one billion, two hundred one million, one hundred twelve thousand, twenty-one".