212011210001 has 4 divisors (see below), whose sum is σ = 215604620400. Its totient is φ = 208417799604.

The previous prime is 212011209997. The next prime is 212011210007. The reversal of 212011210001 is 100012110212.

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 212011210001 - 2² = 212011209997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212011210007) 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, 1796705111 + ... + 1796705228.

It is an arithmetic number, because the mean of its divisors is an integer number (53901155100).

Almost surely, 2^212011210001 is an apocalyptic number.

It is an amenable number.

212011210001 is a deficient number, since it is larger than the sum of its proper divisors (3593410399).

212011210001 is an equidigital number, since it uses as much as digits as its factorization.

212011210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3593410398.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 212011210001 its reverse (100012110212), we get a palindrome (312023320213).

The spelling of 212011210001 in words is "two hundred twelve billion, eleven million, two hundred ten thousand, one".