201121012020112 has 10 divisors (see below), whose sum is σ = 389671960788998. Its totient is φ = 100560506010048.

The previous prime is 201121012020041. The next prime is 201121012020121. The reversal of 201121012020112 is 211020210121102.

It can be written as a sum of positive squares in only one way, i.e., 145367969514496 + 55753042505616 = 12056864^2 + 7466796^2 .

It is a super-2 number, since 2×201121012020112² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16), and also a Moran number because the ratio is a prime number: 12570063251257 = 201121012020112 / (2 + 0 + 1 + 1 + 2 + 1 + 0 + 1 + 2 + 0 + 2 + 0 + 1 + 1 + 2).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6285031625613 + ... + 6285031625644.

Almost surely, 2^{201121012020112} is an apocalyptic number.

It is an amenable number.

201121012020112 is a deficient number, since it is larger than the sum of its proper divisors (188550948768886).

201121012020112 is a wasteful number, since it uses less digits than its factorization.

201121012020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12570063251265 (or 12570063251259 counting only the distinct ones).

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

Adding to 201121012020112 its reverse (211020210121102), we get a palindrome (412141222141214).

The spelling of 201121012020112 in words is "two hundred one trillion, one hundred twenty-one billion, twelve million, twenty thousand, one hundred twelve".