20101121110012 has 12 divisors (see below), whose sum is σ = 35187390949816. Its totient is φ = 10047580838640.

The previous prime is 20101121109967. The next prime is 20101121110043. The reversal of 20101121110012 is 21001112110102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20101121109974 and 20101121110001.

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 3 ways as a sum of consecutive naturals, for example, 744913914 + ... + 744940897.

Almost surely, 2^{20101121110012} is an apocalyptic number.

It is an amenable number.

20101121110012 is a deficient number, since it is larger than the sum of its proper divisors (15086269839804).

20101121110012 is a wasteful number, since it uses less digits than its factorization.

20101121110012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489858188 (or 1489858186 counting only the distinct ones).

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

Adding to 20101121110012 its reverse (21001112110102), we get a palindrome (41102233220114).

The spelling of 20101121110012 in words is "twenty trillion, one hundred one billion, one hundred twenty-one million, one hundred ten thousand, twelve".