111220220121010 has 128 divisors (see below), whose sum is σ = 268944452679168. Its totient is φ = 31981651200000.

The previous prime is 111220220120969. The next prime is 111220220121011. The reversal of 111220220121010 is 10121022022111.

It is not an unprimeable number, because it can be changed into a prime (111220220121011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14943360 + ... + 21112660.

It is an arithmetic number, because the mean of its divisors is an integer number (2101128536556).

Almost surely, 2^{111220220121010} is an apocalyptic number.

111220220121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111220220121010 is an abundant number, since it is smaller than the sum of its proper divisors (157724232558158).

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

111220220121010 is a wasteful number, since it uses less digits than its factorization.

111220220121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6171140.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111220220121010 its reverse (10121022022111), we get a palindrome (121341242143121).

It can be divided in two parts, 1112202 and 20121010, that added together give a palindrome (21233212).

The spelling of 111220220121010 in words is "one hundred eleven trillion, two hundred twenty billion, two hundred twenty million, one hundred twenty-one thousand, ten".