211121103101 has 4 divisors (see below), whose sum is σ = 211360199232. Its totient is φ = 210882006972.

The previous prime is 211121103097. The next prime is 211121103113. The reversal of 211121103101 is 101301121112.

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 211121103101 - 2² = 211121103097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211121103161) 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, 119546741 + ... + 119548506.

It is an arithmetic number, because the mean of its divisors is an integer number (52840049808).

Almost surely, 2^211121103101 is an apocalyptic number.

It is an amenable number.

211121103101 is a deficient number, since it is larger than the sum of its proper divisors (239096131).

211121103101 is an equidigital number, since it uses as much as digits as its factorization.

211121103101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239096130.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 211121103101 its reverse (101301121112), we get a palindrome (312422224213).

The spelling of 211121103101 in words is "two hundred eleven billion, one hundred twenty-one million, one hundred three thousand, one hundred one".