20010220200202 has 4 divisors (see below), whose sum is σ = 30015330300306. Its totient is φ = 10005110100100.

The previous prime is 20010220200119. The next prime is 20010220200329. The reversal of 20010220200202 is 20200202201002.

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., 19015870196961 + 994350003241 = 4360719^2 + 997171^2 .

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 polite number, since it can be written as a sum of consecutive naturals, namely, 5002555050049 + ... + 5002555050052.

Almost surely, 2^{20010220200202} is an apocalyptic number.

20010220200202 is a deficient number, since it is larger than the sum of its proper divisors (10005110100104).

20010220200202 is a wasteful number, since it uses less digits than its factorization.

20010220200202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10005110100103.

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

Adding to 20010220200202 its reverse (20200202201002), we get a palindrome (40210422401204).

The spelling of 20010220200202 in words is "twenty trillion, ten billion, two hundred twenty million, two hundred thousand, two hundred two".