20112231320210 has 16 divisors (see below), whose sum is σ = 36575233041816. Its totient is φ = 7961955491328.

The previous prime is 20112231320191. The next prime is 20112231320257. The reversal of 20112231320210 is 1202313221102.

It can be written as a sum of positive squares in 4 ways, for example, as 14616315350641 + 5495915969569 = 3823129^2 + 2344337^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10367128577 + ... + 10367130516.

Almost surely, 2^{20112231320210} is an apocalyptic number.

20112231320210 is a deficient number, since it is larger than the sum of its proper divisors (16463001721606).

20112231320210 is a wasteful number, since it uses less digits than its factorization.

20112231320210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20734259197.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20112231320210 its reverse (1202313221102), we get a palindrome (21314544541312).

The spelling of 20112231320210 in words is "twenty trillion, one hundred twelve billion, two hundred thirty-one million, three hundred twenty thousand, two hundred ten".