212112022201 has 4 divisors (see below), whose sum is σ = 212584432500. Its totient is φ = 211639611904.

The previous prime is 212112022193. The next prime is 212112022223. The reversal of 212112022201 is 102220211212.

It is a happy number.

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 182992306176 + 29119716025 = 427776^2 + 170645^2 .

It is a cyclic number.

It is not a de Polignac number, because 212112022201 - 2³ = 212112022193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212112022271) 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, 236204476 + ... + 236205373.

It is an arithmetic number, because the mean of its divisors is an integer number (53146108125).

Almost surely, 2^212112022201 is an apocalyptic number.

It is an amenable number.

212112022201 is a deficient number, since it is larger than the sum of its proper divisors (472410299).

212112022201 is an equidigital number, since it uses as much as digits as its factorization.

212112022201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472410298.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212112022201 its reverse (102220211212), we get a palindrome (314332233413).

The spelling of 212112022201 in words is "two hundred twelve billion, one hundred twelve million, twenty-two thousand, two hundred one".