212210002001 has 4 divisors (see below), whose sum is σ = 212355452400. Its totient is φ = 212064551604.

The previous prime is 212210001877. The next prime is 212210002009. The reversal of 212210002001 is 100200012212.

It is a happy number.

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 212210002001 - 2¹⁸ = 212209739857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212210002009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72723011 + ... + 72725928.

It is an arithmetic number, because the mean of its divisors is an integer number (53088863100).

Almost surely, 2^212210002001 is an apocalyptic number.

It is an amenable number.

212210002001 is a deficient number, since it is larger than the sum of its proper divisors (145450399).

212210002001 is a wasteful number, since it uses less digits than its factorization.

212210002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145450398.

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

Adding to 212210002001 its reverse (100200012212), we get a palindrome (312410014213).

The spelling of 212210002001 in words is "two hundred twelve billion, two hundred ten million, two thousand, one".