212201221202011 has 4 divisors (see below), whose sum is σ = 217136133323032. Its totient is φ = 207266309080992.

The previous prime is 212201221201973. The next prime is 212201221202041. The reversal of 212201221202011 is 110202122102212.

212201221202011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212201221202011 - 2¹¹ = 212201221199963 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212201221202011.

It is not an unprimeable number, because it can be changed into a prime (212201221202041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2467456060446 + ... + 2467456060531.

It is an arithmetic number, because the mean of its divisors is an integer number (54284033330758).

Almost surely, 2^{212201221202011} is an apocalyptic number.

212201221202011 is a deficient number, since it is larger than the sum of its proper divisors (4934912121021).

212201221202011 is an equidigital number, since it uses as much as digits as its factorization.

212201221202011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4934912121020.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212201221202011 its reverse (110202122102212), we get a palindrome (322403343304223).

The spelling of 212201221202011 in words is "two hundred twelve trillion, two hundred one billion, two hundred twenty-one million, two hundred two thousand, eleven".