122700111989 has 16 divisors (see below), whose sum is σ = 158963710080. Its totient is φ = 91971858240.

The previous prime is 122700111953. The next prime is 122700112037. The reversal of 122700111989 is 989111007221.

It is a cyclic number.

It is not a de Polignac number, because 122700111989 - 2²⁴ = 122683334773 is a prime.

It is a super-2 number, since 2×122700111989² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122700111929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35481242 + ... + 35484699.

It is an arithmetic number, because the mean of its divisors is an integer number (9935231880).

Almost surely, 2^122700111989 is an apocalyptic number.

122700111989 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

122700111989 is a deficient number, since it is larger than the sum of its proper divisors (36263598091).

122700111989 is a wasteful number, since it uses less digits than its factorization.

122700111989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70965980.

The product of its (nonzero) digits is 18144, while the sum is 41.

The spelling of 122700111989 in words is "one hundred twenty-two billion, seven hundred million, one hundred eleven thousand, nine hundred eighty-nine".