20020112012 has 6 divisors (see below), whose sum is σ = 35035196028. Its totient is φ = 10010056004.

The previous prime is 20020111921. The next prime is 20020112023. The reversal of 20020112012 is 21021102002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20020111984 and 20020112002.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2502513998 + ... + 2502514005.

It is an arithmetic number, because the mean of its divisors is an integer number (5839199338).

Almost surely, 2^20020112012 is an apocalyptic number.

It is an amenable number.

20020112012 is a deficient number, since it is larger than the sum of its proper divisors (15015084016).

20020112012 is a wasteful number, since it uses less digits than its factorization.

20020112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5005028007 (or 5005028005 counting only the distinct ones).

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

Adding to 20020112012 its reverse (21021102002), we get a palindrome (41041214014).

The spelling of 20020112012 in words is "twenty billion, twenty million, one hundred twelve thousand, twelve".