201212021100001 has 4 divisors (see below), whose sum is σ = 205891370427952. Its totient is φ = 196532671772052.

The previous prime is 201212021099987. The next prime is 201212021100049. The reversal of 201212021100001 is 100001120212102.

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 201212021100001 - 2¹¹ = 201212021097953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201212021100061) 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, 2339674663911 + ... + 2339674663996.

It is an arithmetic number, because the mean of its divisors is an integer number (51472842606988).

Almost surely, 2^{201212021100001} is an apocalyptic number.

It is an amenable number.

201212021100001 is a deficient number, since it is larger than the sum of its proper divisors (4679349327951).

201212021100001 is an equidigital number, since it uses as much as digits as its factorization.

201212021100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4679349327950.

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

Adding to 201212021100001 its reverse (100001120212102), we get a palindrome (301213141312103).

The spelling of 201212021100001 in words is "two hundred one trillion, two hundred twelve billion, twenty-one million, one hundred thousand, one".