1002204100 has 18 divisors (see below), whose sum is σ = 2174783114. Its totient is φ = 400881600.

The previous prime is 1002204061. The next prime is 1002204107. The reversal of 1002204100 is 14022001.

It can be written as a sum of positive squares in 3 ways, for example, as 101243844 + 900960256 = 10062^2 + 30016^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1002204107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5010921 + ... + 5011120.

Almost surely, 2^1002204100 is an apocalyptic number.

1002204100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002204100 is an abundant number, since it is smaller than the sum of its proper divisors (1172579014).

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

1002204100 is a wasteful number, since it uses less digits than its factorization.

1002204100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10022055 (or 10022048 counting only the distinct ones).

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

The square root of 1002204100 is about 31657.6073006158. The cubic root of 1002204100 is about 1000.7341608759.

Adding to 1002204100 its reverse (14022001), we get a palindrome (1016226101).

The spelling of 1002204100 in words is "one billion, two million, two hundred four thousand, one hundred".