20201000120012 has 48 divisors (see below), whose sum is σ = 37433264279040. Its totient is φ = 9519623173632.

The previous prime is 20201000120003. The next prime is 20201000120023. The reversal of 20201000120012 is 21002100010202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20201000119975 and 20201000120002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2960312 + ... + 7011807.

It is an arithmetic number, because the mean of its divisors is an integer number (779859672480).

Almost surely, 2^{20201000120012} is an apocalyptic number.

It is an amenable number.

20201000120012 is a deficient number, since it is larger than the sum of its proper divisors (17232264159028).

20201000120012 is a wasteful number, since it uses less digits than its factorization.

20201000120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9972470 (or 9972468 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20201000120012 its reverse (21002100010202), we get a palindrome (41203100130214).

The spelling of 20201000120012 in words is "twenty trillion, two hundred one billion, one hundred twenty thousand, twelve".