122221021112011 has 16 divisors (see below), whose sum is σ = 122469355388160. Its totient is φ = 121972942899360.

The previous prime is 122221021111997. The next prime is 122221021112027. The reversal of 122221021112011 is 110211120122221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 122221021112011 - 2⁵ = 122221021111979 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 122221021112011.

It is not an unprimeable number, because it can be changed into a prime (122221021116011) 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 15 ways as a sum of consecutive naturals, for example, 9416822320 + ... + 9416835298.

It is an arithmetic number, because the mean of its divisors is an integer number (7654334711760).

Almost surely, 2^{122221021112011} is an apocalyptic number.

122221021112011 is a deficient number, since it is larger than the sum of its proper divisors (248334276149).

122221021112011 is a wasteful number, since it uses less digits than its factorization.

122221021112011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21426.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 122221021112011 its reverse (110211120122221), we get a palindrome (232432141234232).

The spelling of 122221021112011 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, twenty-one million, one hundred twelve thousand, eleven".