202121002011200 has 42 divisors (see below), whose sum is σ = 497343990577746. Its totient is φ = 80848400803840.

The previous prime is 202121002011191. The next prime is 202121002011251. The reversal of 202121002011200 is 2110200121202.

It can be written as a sum of positive squares in 3 ways, for example, as 29560621033024 + 172560380978176 = 5436968^2 + 13136224^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63162811529 + ... + 63162814728.

Almost surely, 2^{202121002011200} is an apocalyptic number.

202121002011200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202121002011200 is an abundant number, since it is smaller than the sum of its proper divisors (295222988566546).

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

202121002011200 is a wasteful number, since it uses less digits than its factorization.

202121002011200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126325626279 (or 126325626264 counting only the distinct ones).

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

Adding to 202121002011200 its reverse (2110200121202), we get a palindrome (204231202132402).

The spelling of 202121002011200 in words is "two hundred two trillion, one hundred twenty-one billion, two million, eleven thousand, two hundred".