1009100100202 has 4 divisors (see below), whose sum is σ = 1513650150306. Its totient is φ = 504550050100.

The previous prime is 1009100100193. The next prime is 1009100100241. The reversal of 1009100100202 is 2020010019001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 994669123561 + 14430976641 = 997331^2 + 120129^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252275025049 + ... + 252275025052.

Almost surely, 2^{1009100100202} is an apocalyptic number.

1009100100202 is a deficient number, since it is larger than the sum of its proper divisors (504550050104).

1009100100202 is an equidigital number, since it uses as much as digits as its factorization.

1009100100202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504550050103.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1009100100202 its reverse (2020010019001), we get a palindrome (3029110119203).

The spelling of 1009100100202 in words is "one trillion, nine billion, one hundred million, one hundred thousand, two hundred two".