111320101212220 has 24 divisors (see below), whose sum is σ = 246076013206800. Its totient is φ = 42184459406592.

The previous prime is 111320101212211. The next prime is 111320101212227. The reversal of 111320101212220 is 22212101023111.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111320101212227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146473817005 + ... + 146473817764.

It is an arithmetic number, because the mean of its divisors is an integer number (10253167216950).

Almost surely, 2^{111320101212220} is an apocalyptic number.

111320101212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111320101212220 is an abundant number, since it is smaller than the sum of its proper divisors (134755911994580).

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

111320101212220 is a wasteful number, since it uses less digits than its factorization.

111320101212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292947634797 (or 292947634795 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 111320101212220 its reverse (22212101023111), we get a palindrome (133532202235331).

The spelling of 111320101212220 in words is "one hundred eleven trillion, three hundred twenty billion, one hundred one million, two hundred twelve thousand, two hundred twenty".