212201011211201 has 4 divisors (see below), whose sum is σ = 212201756277972. Its totient is φ = 212200266144432.

The previous prime is 212201011211177. The next prime is 212201011211249. The reversal of 212201011211201 is 102112110102212.

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

It can be written as a sum of positive squares in 2 ways, for example, as 161350991164801 + 50850020046400 = 12702401^2 + 7130920^2 .

It is a cyclic number.

It is not a de Polignac number, because 212201011211201 - 2²⁶ = 212200944102337 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 212201011211201.

It is not an unprimeable number, because it can be changed into a prime (212201011211801) 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, 372106010 + ... + 372675843.

It is an arithmetic number, because the mean of its divisors is an integer number (53050439069493).

Almost surely, 2^{212201011211201} is an apocalyptic number.

It is an amenable number.

212201011211201 is a deficient number, since it is larger than the sum of its proper divisors (745066771).

212201011211201 is an equidigital number, since it uses as much as digits as its factorization.

212201011211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745066770.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 212201011211201 its reverse (102112110102212), we get a palindrome (314313121313413).

The spelling of 212201011211201 in words is "two hundred twelve trillion, two hundred one billion, eleven million, two hundred eleven thousand, two hundred one".