122211122112011 has 4 divisors (see below), whose sum is σ = 122462068975152. Its totient is φ = 121960175248872.

The previous prime is 122211122111993. The next prime is 122211122112019. The reversal of 122211122112011 is 110211221112221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 122211122112011 - 2³⁸ = 121936244205067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122211122112019) 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, 125473430840 + ... + 125473431813.

It is an arithmetic number, because the mean of its divisors is an integer number (30615517243788).

Almost surely, 2^{122211122112011} is an apocalyptic number.

122211122112011 is a deficient number, since it is larger than the sum of its proper divisors (250946863141).

122211122112011 is an equidigital number, since it uses as much as digits as its factorization.

122211122112011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250946863140.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 122211122112011 its reverse (110211221112221), we get a palindrome (232422343224232).

The spelling of 122211122112011 in words is "one hundred twenty-two trillion, two hundred eleven billion, one hundred twenty-two million, one hundred twelve thousand, eleven".