122121122102211 has 4 divisors (see below), whose sum is σ = 162828162802952. Its totient is φ = 81414081401472.

The previous prime is 122121122102201. The next prime is 122121122102227. The reversal of 122121122102211 is 112201221121221.

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

It is not a de Polignac number, because 122121122102211 - 2¹³ = 122121122094019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122121122102201) 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, 20353520350366 + ... + 20353520350371.

It is an arithmetic number, because the mean of its divisors is an integer number (40707040700738).

Almost surely, 2^{122121122102211} is an apocalyptic number.

122121122102211 is a deficient number, since it is larger than the sum of its proper divisors (40707040700741).

122121122102211 is an equidigital number, since it uses as much as digits as its factorization.

122121122102211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40707040700740.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 122121122102211 its reverse (112201221121221), we get a palindrome (234322343223432).

The spelling of 122121122102211 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, one hundred twenty-two million, one hundred two thousand, two hundred eleven".