20102220111120 has 160 divisors (see below), whose sum is σ = 72222383185920. Its totient is φ = 4530077744640.

The previous prime is 20102220111119. The next prime is 20102220111121. The reversal of 20102220111120 is 2111102220102.

It is an interprime number because it is at equal distance from previous prime (20102220111119) and next prime (20102220111121).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20102220111120.

It is not an unprimeable number, because it can be changed into a prime (20102220111121) 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 31 ways as a sum of consecutive naturals, for example, 84145560 + ... + 84384119.

It is an arithmetic number, because the mean of its divisors is an integer number (451389894912).

Almost surely, 2^{20102220111120} is an apocalyptic number.

20102220111120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20102220111120 is an abundant number, since it is smaller than the sum of its proper divisors (52120163074800).

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

20102220111120 is a wasteful number, since it uses less digits than its factorization.

20102220111120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168529773 (or 168529767 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20102220111120 its reverse (2111102220102), we get a palindrome (22213322331222).

The spelling of 20102220111120 in words is "twenty trillion, one hundred two billion, two hundred twenty million, one hundred eleven thousand, one hundred twenty".