20012102112202 has 4 divisors (see below), whose sum is σ = 30018153168306. Its totient is φ = 10006051056100.

The previous prime is 20012102112181. The next prime is 20012102112229. The reversal of 20012102112202 is 20221120121002.

It is a happy number.

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., 16859556269521 + 3152545842681 = 4106039^2 + 1775541^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5003025528049 + ... + 5003025528052.

Almost surely, 2^{20012102112202} is an apocalyptic number.

20012102112202 is a deficient number, since it is larger than the sum of its proper divisors (10006051056104).

20012102112202 is a wasteful number, since it uses less digits than its factorization.

20012102112202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10006051056103.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20012102112202 its reverse (20221120121002), we get a palindrome (40233222233204).

The spelling of 20012102112202 in words is "twenty trillion, twelve billion, one hundred two million, one hundred twelve thousand, two hundred two".