211201100211121 has 4 divisors (see below), whose sum is σ = 211201239731200. Its totient is φ = 211200960691044.

The previous prime is 211201100211119. The next prime is 211201100211131. The reversal of 211201100211121 is 121112001102112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 211201100211121 - 2¹ = 211201100211119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211201100211095 and 211201100211104.

It is not an unprimeable number, because it can be changed into a prime (211201100211131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67464201 + ... + 70525318.

It is an arithmetic number, because the mean of its divisors is an integer number (52800309932800).

Almost surely, 2^{211201100211121} is an apocalyptic number.

It is an amenable number.

211201100211121 is a deficient number, since it is larger than the sum of its proper divisors (139520079).

211201100211121 is a wasteful number, since it uses less digits than its factorization.

211201100211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139520078.

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

Adding to 211201100211121 its reverse (121112001102112), we get a palindrome (332313101313233).

The spelling of 211201100211121 in words is "two hundred eleven trillion, two hundred one billion, one hundred million, two hundred eleven thousand, one hundred twenty-one".