212021112201 has 4 divisors (see below), whose sum is σ = 282694816272. Its totient is φ = 141347408132.

The previous prime is 212021112139. The next prime is 212021112203. The reversal of 212021112201 is 102211120212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212021112201 - 2¹⁵ = 212021079433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212021112203) 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, 35336852031 + ... + 35336852036.

It is an arithmetic number, because the mean of its divisors is an integer number (70673704068).

Almost surely, 2^212021112201 is an apocalyptic number.

It is an amenable number.

212021112201 is a deficient number, since it is larger than the sum of its proper divisors (70673704071).

212021112201 is an equidigital number, since it uses as much as digits as its factorization.

212021112201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70673704070.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212021112201 its reverse (102211120212), we get a palindrome (314232232413).

The spelling of 212021112201 in words is "two hundred twelve billion, twenty-one million, one hundred twelve thousand, two hundred one".