202000122121200 has 720 divisors, whose sum is σ = 737794301535360. Its totient is φ = 47090833920000.

The previous prime is 202000122121199. The next prime is 202000122121247. The reversal of 202000122121200 is 2121221000202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 202000122121200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 15609306730 + ... + 15609319670.

It is an arithmetic number, because the mean of its divisors is an integer number (1024714307688).

Almost surely, 2^{202000122121200} is an apocalyptic number.

202000122121200 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 202000122121200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368897150767680).

202000122121200 is an abundant number, since it is smaller than the sum of its proper divisors (535794179414160).

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

202000122121200 is a wasteful number, since it uses less digits than its factorization.

202000122121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17058 (or 17034 counting only the distinct ones).

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

Adding to 202000122121200 its reverse (2121221000202), we get a palindrome (204121343121402).

The spelling of 202000122121200 in words is "two hundred two trillion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred".