201212010012001 has 4 divisors (see below), whose sum is σ = 201212640420400. Its totient is φ = 201211379603604.

The previous prime is 201212010011981. The next prime is 201212010012007. The reversal of 201212010012001 is 100210010212102.

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 a de Polignac number, because none of the positive numbers 2^k-201212010012001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201212010012007) 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, 314725191 + ... + 315363868.

It is an arithmetic number, because the mean of its divisors is an integer number (50303160105100).

Almost surely, 2^{201212010012001} is an apocalyptic number.

It is an amenable number.

201212010012001 is a deficient number, since it is larger than the sum of its proper divisors (630408399).

201212010012001 is an equidigital number, since it uses as much as digits as its factorization.

201212010012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630408398.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201212010012001 its reverse (100210010212102), we get a palindrome (301422020224103).

The spelling of 201212010012001 in words is "two hundred one trillion, two hundred twelve billion, ten million, twelve thousand, one".