211121210100201 has 32 divisors (see below), whose sum is σ = 282968470794240. Its totient is φ = 140012380800000.

The previous prime is 211121210100083. The next prime is 211121210100217. The reversal of 211121210100201 is 102001012121112.

It is a happy number.

It is not a de Polignac number, because 211121210100201 - 2⁴² = 206723163589097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211121210100001) 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 31 ways as a sum of consecutive naturals, for example, 1590288576 + ... + 1590421326.

It is an arithmetic number, because the mean of its divisors is an integer number (8842764712320).

Almost surely, 2^{211121210100201} is an apocalyptic number.

It is an amenable number.

211121210100201 is a deficient number, since it is larger than the sum of its proper divisors (71847260694039).

211121210100201 is a wasteful number, since it uses less digits than its factorization.

211121210100201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135877.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 211121210100201 its reverse (102001012121112), we get a palindrome (313122222221313).

The spelling of 211121210100201 in words is "two hundred eleven trillion, one hundred twenty-one billion, two hundred ten million, one hundred thousand, two hundred one".