202102100001200 has 240 divisors, whose sum is σ = 587595659042304. Its totient is φ = 65211811123200.

The previous prime is 202102100001133. The next prime is 202102100001209. The reversal of 202102100001200 is 2100001201202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (202102100001209) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 760086677 + ... + 760352523.

Almost surely, 2^{202102100001200} is an apocalyptic number.

202102100001200 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 202102100001200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293797829521152).

202102100001200 is an abundant number, since it is smaller than the sum of its proper divisors (385493559041104).

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

202102100001200 is a wasteful number, since it uses less digits than its factorization.

202102100001200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281860 (or 281849 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 202102100001200 its reverse (2100001201202), we get a palindrome (204202101202402).

The spelling of 202102100001200 in words is "two hundred two trillion, one hundred two billion, one hundred million, one thousand, two hundred".