122120102020019 has 4 divisors (see below), whose sum is σ = 125098641093720. Its totient is φ = 119141562946320.

The previous prime is 122120102020003. The next prime is 122120102020139. The reversal of 122120102020019 is 910020201021221.

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 122120102020019 - 2⁴ = 122120102020003 is a prime.

It is a super-2 number, since 2×122120102020019² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122120102019976 and 122120102020003.

It is not an unprimeable number, because it can be changed into a prime (122120102022019) 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, 1489269536789 + ... + 1489269536870.

It is an arithmetic number, because the mean of its divisors is an integer number (31274660273430).

Almost surely, 2^{122120102020019} is an apocalyptic number.

122120102020019 is a deficient number, since it is larger than the sum of its proper divisors (2978539073701).

122120102020019 is an equidigital number, since it uses as much as digits as its factorization.

122120102020019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2978539073700.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 122120102020019 in words is "one hundred twenty-two trillion, one hundred twenty billion, one hundred two million, twenty thousand, nineteen".