20101101211012 has 12 divisors (see below), whose sum is σ = 35186235673680. Its totient is φ = 10047891018536.

The previous prime is 20101101210997. The next prime is 20101101211019. The reversal of 20101101211012 is 21011210110102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20101101210983 and 20101101211001.

It is not an unprimeable number, because it can be changed into a prime (20101101211019) 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, 664879738 + ... + 664909969.

It is an arithmetic number, because the mean of its divisors is an integer number (2932186306140).

Almost surely, 2^{20101101211012} is an apocalyptic number.

It is an amenable number.

20101101211012 is a deficient number, since it is larger than the sum of its proper divisors (15085134462668).

20101101211012 is a wasteful number, since it uses less digits than its factorization.

20101101211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329793490 (or 1329793488 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20101101211012 its reverse (21011210110102), we get a palindrome (41112311321114).

The spelling of 20101101211012 in words is "twenty trillion, one hundred one billion, one hundred one million, two hundred eleven thousand, twelve".