20402104140212 has 12 divisors (see below), whose sum is σ = 37582823416320. Its totient is φ = 9664154592696.

The previous prime is 20402104140199. The next prime is 20402104140227. The reversal of 20402104140212 is 21204140120402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134224369268 + ... + 134224369419.

It is an arithmetic number, because the mean of its divisors is an integer number (3131901951360).

Almost surely, 2^{20402104140212} is an apocalyptic number.

It is an amenable number.

20402104140212 is a deficient number, since it is larger than the sum of its proper divisors (17180719276108).

20402104140212 is a wasteful number, since it uses less digits than its factorization.

20402104140212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268448738710 (or 268448738708 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 20402104140212 its reverse (21204140120402), we get a palindrome (41606244260614).

The spelling of 20402104140212 in words is "twenty trillion, four hundred two billion, one hundred four million, one hundred forty thousand, two hundred twelve".