211001112021001 has 8 divisors (see below), whose sum is σ = 211369042504224. Its totient is φ = 210633222315840.

The previous prime is 211001112020999. The next prime is 211001112021031. The reversal of 211001112021001 is 100120211100112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211001112021001 - 2¹ = 211001112020999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211001112021031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172446 + ... + 20543416.

It is an arithmetic number, because the mean of its divisors is an integer number (26421130313028).

Almost surely, 2^{211001112021001} is an apocalyptic number.

It is an amenable number.

211001112021001 is a deficient number, since it is larger than the sum of its proper divisors (367930483223).

211001112021001 is a wasteful number, since it uses less digits than its factorization.

211001112021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20389031.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 211001112021001 its reverse (100120211100112), we get a palindrome (311121323121113).

The spelling of 211001112021001 in words is "two hundred eleven trillion, one billion, one hundred twelve million, twenty-one thousand, one".