20011012012 has 12 divisors (see below), whose sum is σ = 35020262200. Its totient is φ = 10005222816.

The previous prime is 20011011961. The next prime is 20011012019. The reversal of 20011012012 is 21021011002.

It is a self number, because there is not a number n which added to its sum of digits gives 20011012012.

It is not an unprimeable number, because it can be changed into a prime (20011012019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233848 + ... + 307744.

Almost surely, 2^20011012012 is an apocalyptic number.

It is an amenable number.

20011012012 is a deficient number, since it is larger than the sum of its proper divisors (15009250188).

20011012012 is a wasteful number, since it uses less digits than its factorization.

20011012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141600 (or 141598 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20011012012 its reverse (21021011002), we get a palindrome (41032023014).

The spelling of 20011012012 in words is "twenty billion, eleven million, twelve thousand, twelve".