200121022104 has 32 divisors (see below), whose sum is σ = 500444136000. Its totient is φ = 66688129952.

The previous prime is 200121022103. The next prime is 200121022117. The reversal of 200121022104 is 401220121002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200121022103) 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 7 ways as a sum of consecutive naturals, for example, 1093134 + ... + 1263005.

It is an arithmetic number, because the mean of its divisors is an integer number (15638879250).

Almost surely, 2^200121022104 is an apocalyptic number.

200121022104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

200121022104 is an abundant number, since it is smaller than the sum of its proper divisors (300323113896).

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

200121022104 is a wasteful number, since it uses less digits than its factorization.

200121022104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2359687 (or 2359683 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 200121022104 its reverse (401220121002), we get a palindrome (601341143106).

The spelling of 200121022104 in words is "two hundred billion, one hundred twenty-one million, twenty-two thousand, one hundred four".