20012200110101 has 4 divisors (see below), whose sum is σ = 20034915434604. Its totient is φ = 19989484785600.

The previous prime is 20012200110047. The next prime is 20012200110131. The reversal of 20012200110101 is 10101100221002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4819737252100 + 15192462858001 = 2195390^2 + 3897751^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20012200110101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012200110131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11357660930 + ... + 11357662691.

It is an arithmetic number, because the mean of its divisors is an integer number (5008728858651).

Almost surely, 2^{20012200110101} is an apocalyptic number.

It is an amenable number.

20012200110101 is a deficient number, since it is larger than the sum of its proper divisors (22715324503).

20012200110101 is an equidigital number, since it uses as much as digits as its factorization.

20012200110101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22715324502.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20012200110101 its reverse (10101100221002), we get a palindrome (30113300331103).

The spelling of 20012200110101 in words is "twenty trillion, twelve billion, two hundred million, one hundred ten thousand, one hundred one".