200121112003122 has 12 divisors (see below), whose sum is σ = 433595742673470. Its totient is φ = 66707037334368.

The previous prime is 200121112003069. The next prime is 200121112003123. The reversal of 200121112003122 is 221300211121002.

200121112003122 is a `hidden beast` number, since 20 + 0 + 1 + 211 + 120 + 0 + 312 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 108940174628481 + 91180937374641 = 10437441^2 + 9548871^2 .

It is a super-2 number, since 2×200121112003122² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11117839555729 = 200121112003122 / (2 + 0 + 0 + 1 + 2 + 1 + 1 + 1 + 2 + 0 + 0 + 3 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 200121112003095 and 200121112003104.

It is not an unprimeable number, because it can be changed into a prime (200121112003123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5558919777847 + ... + 5558919777882.

Almost surely, 2^{200121112003122} is an apocalyptic number.

200121112003122 is an abundant number, since it is smaller than the sum of its proper divisors (233474630670348).

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

200121112003122 is a wasteful number, since it uses less digits than its factorization.

200121112003122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11117839555737 (or 11117839555734 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 200121112003122 its reverse (221300211121002), we get a palindrome (421421323124124).

The spelling of 200121112003122 in words is "two hundred trillion, one hundred twenty-one billion, one hundred twelve million, three thousand, one hundred twenty-two".