212101120021201 has 12 divisors (see below), whose sum is σ = 220894343794800. Its totient is φ = 203643225088688.

The previous prime is 212101120021187. The next prime is 212101120021247. The reversal of 212101120021201 is 102120021101212.

212101120021201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212101120021201 - 2¹¹ = 212101120019153 is a prime.

It is a super-2 number, since 2×212101120021201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212111120021201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 704321791 + ... + 704622868.

It is an arithmetic number, because the mean of its divisors is an integer number (18407861982900).

Almost surely, 2^{212101120021201} is an apocalyptic number.

It is an amenable number.

212101120021201 is a deficient number, since it is larger than the sum of its proper divisors (8793223773599).

212101120021201 is a wasteful number, since it uses less digits than its factorization.

212101120021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408944896 (or 1408944867 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212101120021201 its reverse (102120021101212), we get a palindrome (314221141122413).

The spelling of 212101120021201 in words is "two hundred twelve trillion, one hundred one billion, one hundred twenty million, twenty-one thousand, two hundred one".