122101121005 has 4 divisors (see below), whose sum is σ = 146521345212. Its totient is φ = 97680896800.

The previous prime is 122101120963. The next prime is 122101121017. The reversal of 122101121005 is 500121101221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49988463561 + 72112657444 = 223581^2 + 268538^2 .

It is not a de Polignac number, because 122101121005 - 2¹¹ = 122101118957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122101121005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12210112096 + ... + 12210112105.

It is an arithmetic number, because the mean of its divisors is an integer number (36630336303).

Almost surely, 2^122101121005 is an apocalyptic number.

It is an amenable number.

122101121005 is a deficient number, since it is larger than the sum of its proper divisors (24420224207).

122101121005 is an equidigital number, since it uses as much as digits as its factorization.

122101121005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24420224206.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 122101121005 its reverse (500121101221), we get a palindrome (622222222226).

The spelling of 122101121005 in words is "one hundred twenty-two billion, one hundred one million, one hundred twenty-one thousand, five".