20122220111210 has 96 divisors (see below), whose sum is σ = 44045743662720. Its totient is φ = 6587022169728.

The previous prime is 20122220111173. The next prime is 20122220111219. The reversal of 20122220111210 is 1211102222102.

It is not an unprimeable number, because it can be changed into a prime (20122220111219) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4532636 + ... + 7796744.

It is an arithmetic number, because the mean of its divisors is an integer number (458809829820).

Almost surely, 2^{20122220111210} is an apocalyptic number.

20122220111210 is an abundant number, since it is smaller than the sum of its proper divisors (23923523551510).

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

20122220111210 is a wasteful number, since it uses less digits than its factorization.

20122220111210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3264700 (or 3264693 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20122220111210 its reverse (1211102222102), we get a palindrome (21333322333312).

The spelling of 20122220111210 in words is "twenty trillion, one hundred twenty-two billion, two hundred twenty million, one hundred eleven thousand, two hundred ten".