211121000212001 has 16 divisors (see below), whose sum is σ = 238545876312000. Its totient is φ = 185084256100800.

The previous prime is 211121000211991. The next prime is 211121000212013. The reversal of 211121000212001 is 100212000121112.

It is a cyclic number.

It is not a de Polignac number, because 211121000212001 - 2³⁴ = 211103820342817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211121000215001) 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 15 ways as a sum of consecutive naturals, for example, 402796151 + ... + 403319948.

It is an arithmetic number, because the mean of its divisors is an integer number (14909117269500).

Almost surely, 2^{211121000212001} is an apocalyptic number.

It is an amenable number.

211121000212001 is a deficient number, since it is larger than the sum of its proper divisors (27424876099999).

211121000212001 is a wasteful number, since it uses less digits than its factorization.

211121000212001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806116960.

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

Adding to 211121000212001 its reverse (100212000121112), we get a palindrome (311333000333113).

The spelling of 211121000212001 in words is "two hundred eleven trillion, one hundred twenty-one billion, two hundred twelve thousand, one".