20011020002012 has 48 divisors (see below), whose sum is σ = 38078185548480. Its totient is φ = 9146525971968.

The previous prime is 20011020002003. The next prime is 20011020002069. The reversal of 20011020002012 is 21020002011002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20011020001984 and 20011020002002.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10410593 + ... + 12182055.

It is an arithmetic number, because the mean of its divisors is an integer number (793295532260).

Almost surely, 2^{20011020002012} is an apocalyptic number.

It is an amenable number.

20011020002012 is a deficient number, since it is larger than the sum of its proper divisors (18067165546468).

20011020002012 is a wasteful number, since it uses less digits than its factorization.

20011020002012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773582 (or 1773580 counting only the distinct ones).

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

Adding to 20011020002012 its reverse (21020002011002), we get a palindrome (41031022013014).

The spelling of 20011020002012 in words is "twenty trillion, eleven billion, twenty million, two thousand, twelve".