20113120211210 has 16 divisors (see below), whose sum is σ = 38988509948136. Its totient is φ = 7426382847168.

The previous prime is 20113120211207. The next prime is 20113120211243. The reversal of 20113120211210 is 1211202131102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9291724422289 + 10821395788921 = 3048233^2 + 3289589^2 .

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, 77358154529 + ... + 77358154788.

Almost surely, 2^{20113120211210} is an apocalyptic number.

20113120211210 is a deficient number, since it is larger than the sum of its proper divisors (18875389736926).

20113120211210 is a wasteful number, since it uses less digits than its factorization.

20113120211210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154716309337.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 20113120211210 its reverse (1211202131102), we get a palindrome (21324322342312).

The spelling of 20113120211210 in words is "twenty trillion, one hundred thirteen billion, one hundred twenty million, two hundred eleven thousand, two hundred ten".