120120202019 has 4 divisors (see below), whose sum is σ = 120248399544. Its totient is φ = 119992004496.

The previous prime is 120120202009. The next prime is 120120202061. The reversal of 120120202019 is 910202021021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 910202021021 = 11867 ⋅76700263.

It is a cyclic number.

It is not a de Polignac number, because 120120202019 - 2⁴ = 120120202003 is a prime.

It is a super-2 number, since 2×120120202019² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120120202009) 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, 64097357 + ... + 64099230.

It is an arithmetic number, because the mean of its divisors is an integer number (30062099886).

Almost surely, 2^120120202019 is an apocalyptic number.

120120202019 is a deficient number, since it is larger than the sum of its proper divisors (128197525).

120120202019 is an equidigital number, since it uses as much as digits as its factorization.

120120202019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128197524.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 120120202019 in words is "one hundred twenty billion, one hundred twenty million, two hundred two thousand, nineteen".