122121011000111 has 4 divisors (see below), whose sum is σ = 122121931488000. Its totient is φ = 122120090512224.

The previous prime is 122121011000101. The next prime is 122121011000147. The reversal of 122121011000111 is 111000110121221.

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 122121011000111 - 2⁴⁶ = 51752266822447 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 (122121011000101) 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, 460044911 + ... + 460310288.

It is an arithmetic number, because the mean of its divisors is an integer number (30530482872000).

Almost surely, 2^{122121011000111} is an apocalyptic number.

122121011000111 is a deficient number, since it is larger than the sum of its proper divisors (920487889).

122121011000111 is an equidigital number, since it uses as much as digits as its factorization.

122121011000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920487888.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 122121011000111 its reverse (111000110121221), we get a palindrome (233121121121332).

The spelling of 122121011000111 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, eleven million, one hundred eleven", and thus it is an aban number.