120002121019 has 8 divisors (see below), whose sum is σ = 130936465008. Its totient is φ = 109071953760.

The previous prime is 120002121013. The next prime is 120002121061. The reversal of 120002121019 is 910121200021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120002121019 - 2²⁵ = 119968566587 is a prime.

It is a super-2 number, since 2×120002121019² (a number of 23 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 = 120002120987 and 120002121005.

It is not an unprimeable number, because it can be changed into a prime (120002121013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 983952 + ... + 1099165.

It is an arithmetic number, because the mean of its divisors is an integer number (16367058126).

Almost surely, 2^120002121019 is an apocalyptic number.

120002121019 is a deficient number, since it is larger than the sum of its proper divisors (10934343989).

120002121019 is a wasteful number, since it uses less digits than its factorization.

120002121019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088365.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 120002121019 in words is "one hundred twenty billion, two million, one hundred twenty-one thousand, nineteen".