20012212200202 has 4 divisors (see below), whose sum is σ = 30018318300306. Its totient is φ = 10006106100100.

The previous prime is 20012212200151. The next prime is 20012212200209. The reversal of 20012212200202 is 20200221221002.

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., 19789410263841 + 222801936361 = 4448529^2 + 472019^2 .

It is not an unprimeable number, because it can be changed into a prime (20012212200209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5003053050049 + ... + 5003053050052.

Almost surely, 2^{20012212200202} is an apocalyptic number.

20012212200202 is a deficient number, since it is larger than the sum of its proper divisors (10006106100104).

20012212200202 is a wasteful number, since it uses less digits than its factorization.

20012212200202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10006106100103.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20012212200202 its reverse (20200221221002), we get a palindrome (40212433421204).

The spelling of 20012212200202 in words is "twenty trillion, twelve billion, two hundred twelve million, two hundred thousand, two hundred two".