1002201100200 has 72 divisors (see below), whose sum is σ = 3365725367550. Its totient is φ = 267253626240.

The previous prime is 1002201100169. The next prime is 1002201100211. The reversal of 1002201100200 is 20011022001.

It can be written as a sum of positive squares in 3 ways, for example, as 936183964356 + 66017135844 = 967566^2 + 256938^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 278387395 + ... + 278390994.

Almost surely, 2^{1002201100200} is an apocalyptic number.

1002201100200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002201100200 is an abundant number, since it is smaller than the sum of its proper divisors (2363524267350).

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

1002201100200 is a wasteful number, since it uses less digits than its factorization.

1002201100200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556778411 (or 556778399 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1002201100200 its reverse (20011022001), we get a palindrome (1022212122201).

The spelling of 1002201100200 in words is "one trillion, two billion, two hundred one million, one hundred thousand, two hundred".