122101100101 has 4 divisors (see below), whose sum is σ = 129283517772. Its totient is φ = 114918682432.

The previous prime is 122101100059. The next prime is 122101100131. The reversal of 122101100101 is 101001101221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101001101221 = 23 ⋅4391352227.

It can be written as a sum of positive squares in 2 ways, for example, as 71156096001 + 50945004100 = 266751^2 + 225710^2 .

It is a de Polignac number, because none of the positive numbers 2^k-122101100101 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 (122101100131) 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, 3591208810 + ... + 3591208843.

It is an arithmetic number, because the mean of its divisors is an integer number (32320879443).

Almost surely, 2^122101100101 is an apocalyptic number.

It is an amenable number.

122101100101 is a deficient number, since it is larger than the sum of its proper divisors (7182417671).

122101100101 is an equidigital number, since it uses as much as digits as its factorization.

122101100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7182417670.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 122101100101 its reverse (101001101221), we get a palindrome (223102201322).

The spelling of 122101100101 in words is "one hundred twenty-two billion, one hundred one million, one hundred thousand, one hundred one".