211121010200001 has 16 divisors (see below), whose sum is σ = 307089506896128. Its totient is φ = 127950293581200.

The previous prime is 211121010199973. The next prime is 211121010200057. The reversal of 211121010200001 is 100002010121112.

It is not a de Polignac number, because 211121010200001 - 2¹³ = 211121010191809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211121010200001.

It is not an unprimeable number, because it can be changed into a prime (211121010200071) 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, 43506115 + ... + 48114696.

It is an arithmetic number, because the mean of its divisors is an integer number (19193094181008).

Almost surely, 2^{211121010200001} is an apocalyptic number.

It is an amenable number.

211121010200001 is a deficient number, since it is larger than the sum of its proper divisors (95968496696127).

211121010200001 is a wasteful number, since it uses less digits than its factorization.

211121010200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91690652.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 211121010200001 its reverse (100002010121112), we get a palindrome (311123020321113).

The spelling of 211121010200001 in words is "two hundred eleven trillion, one hundred twenty-one billion, ten million, two hundred thousand, one".