1002100220200 has 48 divisors (see below), whose sum is σ = 2339550688860. Its totient is φ = 399176832000.

The previous prime is 1002100220171. The next prime is 1002100220237. The reversal of 1002100220200 is 20220012001.

It can be written as a sum of positive squares in 6 ways, for example, as 814314931236 + 187785288964 = 902394^2 + 433342^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10347031 + ... + 10443430.

Almost surely, 2^{1002100220200} is an apocalyptic number.

1002100220200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002100220200 is an abundant number, since it is smaller than the sum of its proper divisors (1337450468660).

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

1002100220200 is a wasteful number, since it uses less digits than its factorization.

1002100220200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20790718 (or 20790709 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 1002100220200 its reverse (20220012001), we get a palindrome (1022320232201).

The spelling of 1002100220200 in words is "one trillion, two billion, one hundred million, two hundred twenty thousand, two hundred".