100202002 has 4 divisors (see below), whose sum is σ = 150303006. Its totient is φ = 50101000.

The previous prime is 100201993. The next prime is 100202009. The reversal of 100202002 is 200202001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200202001 = 173 ⋅1157237.

It can be written as a sum of positive squares in only one way, i.e., 58844241 + 41357761 = 7671^2 + 6431^2 .

It is not an unprimeable number, because it can be changed into a prime (100202009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25050499 + ... + 25050502.

Almost surely, 2^100202002 is an apocalyptic number.

100202002 is a deficient number, since it is larger than the sum of its proper divisors (50101004).

100202002 is an equidigital number, since it uses as much as digits as its factorization.

100202002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50101003.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 100202002 is about 10010.0950045442. The cubic root of 100202002 is about 464.4712098962.

Adding to 100202002 its reverse (200202001), we get a palindrome (300404003).

Subtracting 100202002 from its reverse (200202001), we obtain a palindrome (99999999).

The spelling of 100202002 in words is "one hundred million, two hundred two thousand, two".