122101100211 has 4 divisors (see below), whose sum is σ = 162801466952. Its totient is φ = 81400733472.

The previous prime is 122101100141. The next prime is 122101100257. The reversal of 122101100211 is 112001101221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112001101221 = 3 ⋅37333700407.

It is not a de Polignac number, because 122101100211 - 2⁹ = 122101099699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122101100291) 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 3 ways as a sum of consecutive naturals, for example, 20350183366 + ... + 20350183371.

It is an arithmetic number, because the mean of its divisors is an integer number (40700366738).

Almost surely, 2^122101100211 is an apocalyptic number.

122101100211 is a deficient number, since it is larger than the sum of its proper divisors (40700366741).

122101100211 is an equidigital number, since it uses as much as digits as its factorization.

122101100211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40700366740.

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

Adding to 122101100211 its reverse (112001101221), we get a palindrome (234102201432).

The spelling of 122101100211 in words is "one hundred twenty-two billion, one hundred one million, one hundred thousand, two hundred eleven".