42100200202 has 4 divisors (see below), whose sum is σ = 63150300306. Its totient is φ = 21050100100.

The previous prime is 42100200179. The next prime is 42100200217. The reversal of 42100200202 is 20200200124.

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., 33746057401 + 8354142801 = 183701^2 + 91401^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10525050049 + ... + 10525050052.

Almost surely, 2^42100200202 is an apocalyptic number.

42100200202 is a deficient number, since it is larger than the sum of its proper divisors (21050100104).

42100200202 is a wasteful number, since it uses less digits than its factorization.

42100200202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21050100103.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 42100200202 its reverse (20200200124), we get a palindrome (62300400326).

The spelling of 42100200202 in words is "forty-two billion, one hundred million, two hundred thousand, two hundred two".