20111201020112 has 20 divisors (see below), whose sum is σ = 38979605876580. Its totient is φ = 10051947890688.

The previous prime is 20111201020081. The next prime is 20111201020241. The reversal of 20111201020112 is 21102010211102.

It can be written as a sum of positive squares in 2 ways, for example, as 9269564803216 + 10841636216896 = 3044596^2 + 3292664^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228243287 + ... + 228331382.

It is an arithmetic number, because the mean of its divisors is an integer number (1948980293829).

Almost surely, 2^{20111201020112} is an apocalyptic number.

It is an amenable number.

20111201020112 is a deficient number, since it is larger than the sum of its proper divisors (18868404856468).

20111201020112 is a wasteful number, since it uses less digits than its factorization.

20111201020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456577430 (or 456577424 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20111201020112 its reverse (21102010211102), we get a palindrome (41213211231214).

The spelling of 20111201020112 in words is "twenty trillion, one hundred eleven billion, two hundred one million, twenty thousand, one hundred twelve".