201021121001112 has 32 divisors (see below), whose sum is σ = 502562336889600. Its totient is φ = 67005769082144.

The previous prime is 201021121001111. The next prime is 201021121001153. The reversal of 201021121001112 is 211100121120102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201021121001091 and 201021121001100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201021121001111) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 78161412 + ... + 80692307.

It is an arithmetic number, because the mean of its divisors is an integer number (15705073027800).

Almost surely, 2^{201021121001112} is an apocalyptic number.

It is an amenable number.

201021121001112 is an abundant number, since it is smaller than the sum of its proper divisors (301541215888488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201021121001112 is a wasteful number, since it uses less digits than its factorization.

201021121001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158906455 (or 158906451 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 201021121001112 its reverse (211100121120102), we get a palindrome (412121242121214).

The spelling of 201021121001112 in words is "two hundred one trillion, twenty-one billion, one hundred twenty-one million, one thousand, one hundred twelve".