122012021101109 has 4 divisors (see below), whose sum is σ = 128433706422240. Its totient is φ = 115590335779980.

The previous prime is 122012021101081. The next prime is 122012021101129. The reversal of 122012021101109 is 901101120210221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122012021101109 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 (122012021101129) 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, 3210842660537 + ... + 3210842660574.

It is an arithmetic number, because the mean of its divisors is an integer number (32108426605560).

Almost surely, 2^{122012021101109} is an apocalyptic number.

122012021101109 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

122012021101109 is a deficient number, since it is larger than the sum of its proper divisors (6421685321131).

122012021101109 is an equidigital number, since it uses as much as digits as its factorization.

122012021101109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6421685321130.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 122012021101109 in words is "one hundred twenty-two trillion, twelve billion, twenty-one million, one hundred one thousand, one hundred nine".