212012002001 has 2 divisors, whose sum is σ = 212012002002. Its totient is φ = 212012002000.

The previous prime is 212012001997. The next prime is 212012002019. The reversal of 212012002001 is 100200210212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163215192001 + 48796810000 = 403999^2 + 220900^2 .

It is a cyclic number.

It is not a de Polignac number, because 212012002001 - 2² = 212012001997 is a prime.

It is not a weakly prime, because it can be changed into another prime (212012002031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106006001000 + 106006001001.

It is an arithmetic number, because the mean of its divisors is an integer number (106006001001).

Almost surely, 2^212012002001 is an apocalyptic number.

It is an amenable number.

212012002001 is a deficient number, since it is larger than the sum of its proper divisors (1).

212012002001 is an equidigital number, since it uses as much as digits as its factorization.

212012002001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 212012002001 its reverse (100200210212), we get a palindrome (312212212213).

It can be divided in two parts, 21201 and 2002001, that added together give a palindrome (2023202).

The spelling of 212012002001 in words is "two hundred twelve billion, twelve million, two thousand, one".