20011201110202 has 4 divisors (see below), whose sum is σ = 30016801665306. Its totient is φ = 10005600555100.

The previous prime is 20011201110179. The next prime is 20011201110203. The reversal of 20011201110202 is 20201110211002.

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., 10141607098921 + 9869594011281 = 3184589^2 + 3141591^2 .

It is not an unprimeable number, because it can be changed into a prime (20011201110203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5002800277549 + ... + 5002800277552.

Almost surely, 2^{20011201110202} is an apocalyptic number.

20011201110202 is a deficient number, since it is larger than the sum of its proper divisors (10005600555104).

20011201110202 is a wasteful number, since it uses less digits than its factorization.

20011201110202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10005600555103.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20011201110202 its reverse (20201110211002), we get a palindrome (40212311321204).

The spelling of 20011201110202 in words is "twenty trillion, eleven billion, two hundred one million, one hundred ten thousand, two hundred two".