20201210121112 has 64 divisors (see below), whose sum is σ = 38253669120000. Its totient is φ = 10000771432704.

The previous prime is 20201210121049. The next prime is 20201210121179. The reversal of 20201210121112 is 21112101210202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 374117988 + ... + 374171980.

It is an arithmetic number, because the mean of its divisors is an integer number (597713580000).

Almost surely, 2^{20201210121112} is an apocalyptic number.

It is an amenable number.

20201210121112 is a deficient number, since it is larger than the sum of its proper divisors (18052458998888).

20201210121112 is a wasteful number, since it uses less digits than its factorization.

20201210121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55240 (or 55236 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20201210121112 its reverse (21112101210202), we get a palindrome (41313311331314).

The spelling of 20201210121112 in words is "twenty trillion, two hundred one billion, two hundred ten million, one hundred twenty-one thousand, one hundred twelve".