20010121122200 has 192 divisors, whose sum is σ = 51156619873920. Its totient is φ = 7218568448000.

The previous prime is 20010121122179. The next prime is 20010121122223. The reversal of 20010121122200 is 222112101002.

20010121122200 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×20010121122200² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1096015472 + ... + 1096033728.

It is an arithmetic number, because the mean of its divisors is an integer number (266440728510).

Almost surely, 2^{20010121122200} is an apocalyptic number.

20010121122200 is a gapful number since it is divisible by the number (20) 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 20010121122200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25578309936960).

20010121122200 is an abundant number, since it is smaller than the sum of its proper divisors (31146498751720).

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

20010121122200 is a wasteful number, since it uses less digits than its factorization.

20010121122200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22218 (or 22209 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20010121122200 its reverse (222112101002), we get a palindrome (20232233223202).

The spelling of 20010121122200 in words is "twenty trillion, ten billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred".