111312322132220 has 48 divisors (see below), whose sum is σ = 255033363207168. Its totient is φ = 40472929872960.

The previous prime is 111312322132199. The next prime is 111312322132241. The reversal of 111312322132220 is 22231223213111.

It is an interprime number because it is at equal distance from previous prime (111312322132199) and next prime (111312322132241).

It is a super-2 number, since 2×111312322132220² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111312322132220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24652004 + ... + 28815723.

It is an arithmetic number, because the mean of its divisors is an integer number (5313195066816).

Almost surely, 2^{111312322132220} is an apocalyptic number.

111312322132220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111312322132220 is an abundant number, since it is smaller than the sum of its proper divisors (143721041074948).

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

111312322132220 is a wasteful number, since it uses less digits than its factorization.

111312322132220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53477210 (or 53477208 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 111312322132220 its reverse (22231223213111), we get a palindrome (133543545345331).

The spelling of 111312322132220 in words is "one hundred eleven trillion, three hundred twelve billion, three hundred twenty-two million, one hundred thirty-two thousand, two hundred twenty".