20303312122202 has 4 divisors (see below), whose sum is σ = 30454968183306. Its totient is φ = 10151656061100.

The previous prime is 20303312122157. The next prime is 20303312122211. The reversal of 20303312122202 is 20222121330302.

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., 16464028492921 + 3839283629281 = 4057589^2 + 1959409^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5075828030549 + ... + 5075828030552.

Almost surely, 2^{20303312122202} is an apocalyptic number.

20303312122202 is a deficient number, since it is larger than the sum of its proper divisors (10151656061104).

20303312122202 is a wasteful number, since it uses less digits than its factorization.

20303312122202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10151656061103.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20303312122202 its reverse (20222121330302), we get a palindrome (40525433452504).

The spelling of 20303312122202 in words is "twenty trillion, three hundred three billion, three hundred twelve million, one hundred twenty-two thousand, two hundred two".