20111240232210 has 64 divisors (see below), whose sum is σ = 51542044001280. Its totient is φ = 5011032042240.

The previous prime is 20111240232157. The next prime is 20111240232217. The reversal of 20111240232210 is 1223204211102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20111240232217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 372817677 + ... + 372871616.

It is an arithmetic number, because the mean of its divisors is an integer number (805344437520).

Almost surely, 2^{20111240232210} is an apocalyptic number.

20111240232210 is an abundant number, since it is smaller than the sum of its proper divisors (31430803769070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20111240232210 is a wasteful number, since it uses less digits than its factorization.

20111240232210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745689363.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 20111240232210 its reverse (1223204211102), we get a palindrome (21334444443312).

The spelling of 20111240232210 in words is "twenty trillion, one hundred eleven billion, two hundred forty million, two hundred thirty-two thousand, two hundred ten".