200120121222120 has 320 divisors, whose sum is σ = 733818376938240. Its totient is φ = 48511020096000.

The previous prime is 200120121222097. The next prime is 200120121222137. The reversal of 200120121222120 is 21222121021002.

It is a happy number.

200120121222120 is a `hidden beast` number, since 200 + 1 + 2 + 0 + 121 + 222 + 120 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 200120121222093 and 200120121222102.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 617586145 + ... + 617910095.

It is an arithmetic number, because the mean of its divisors is an integer number (2293182427932).

Almost surely, 2^{200120121222120} is an apocalyptic number.

200120121222120 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 200120121222120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (366909188469120).

200120121222120 is an abundant number, since it is smaller than the sum of its proper divisors (533698255716120).

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

200120121222120 is a wasteful number, since it uses less digits than its factorization.

200120121222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341318 (or 341305 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 200120121222120 its reverse (21222121021002), we get a palindrome (221342242243122).

The spelling of 200120121222120 in words is "two hundred trillion, one hundred twenty billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty".