211001210212001 has 16 divisors (see below), whose sum is σ = 232524068536320. Its totient is φ = 189875387958480.

The previous prime is 211001210211973. The next prime is 211001210212007. The reversal of 211001210212001 is 100212012100112.

It is a cyclic number.

It is not a de Polignac number, because 211001210212001 - 2⁴² = 206603163700897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211001210212007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171412691 + ... + 172639256.

It is an arithmetic number, because the mean of its divisors is an integer number (14532754283520).

Almost surely, 2^{211001210212001} is an apocalyptic number.

It is an amenable number.

211001210212001 is a deficient number, since it is larger than the sum of its proper divisors (21522858324319).

211001210212001 is a wasteful number, since it uses less digits than its factorization.

211001210212001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344052524.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 211001210212001 its reverse (100212012100112), we get a palindrome (311213222312113).

The spelling of 211001210212001 in words is "two hundred eleven trillion, one billion, two hundred ten million, two hundred twelve thousand, one".