200121110112 has 288 divisors, whose sum is σ = 672167631744. Its totient is φ = 51977882880.

The previous prime is 200121110107. The next prime is 200121110117. The reversal of 200121110112 is 211011121002.

It is an interprime number because it is at equal distance from previous prime (200121110107) and next prime (200121110117).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200121110117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6245043 + ... + 6277005.

It is an arithmetic number, because the mean of its divisors is an integer number (2333915388).

Almost surely, 2^200121110112 is an apocalyptic number.

200121110112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200121110112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336083815872).

200121110112 is an abundant number, since it is smaller than the sum of its proper divisors (472046521632).

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

200121110112 is a wasteful number, since it uses less digits than its factorization.

200121110112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32023 (or 31986 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 200121110112 its reverse (211011121002), we get a palindrome (411132231114).

The spelling of 200121110112 in words is "two hundred billion, one hundred twenty-one million, one hundred ten thousand, one hundred twelve".