111310001213220 has 144 divisors (see below), whose sum is σ = 352610821285632. Its totient is φ = 28368708445440.

The previous prime is 111310001213161. The next prime is 111310001213221. The reversal of 111310001213220 is 22312100013111.

111310001213220 is a `hidden beast` number, since 1 + 11 + 310 + 0 + 0 + 1 + 21 + 322 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 111310001213193 and 111310001213202.

It is not an unprimeable number, because it can be changed into a prime (111310001213221) 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, 6060816 + ... + 16104455.

It is an arithmetic number, because the mean of its divisors is an integer number (2448686258928).

Almost surely, 2^{111310001213220} is an apocalyptic number.

111310001213220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111310001213220 is an abundant number, since it is smaller than the sum of its proper divisors (241300820072412).

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

111310001213220 is a wasteful number, since it uses less digits than its factorization.

111310001213220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22166522 (or 22166517 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 111310001213220 its reverse (22312100013111), we get a palindrome (133622101226331).

The spelling of 111310001213220 in words is "one hundred eleven trillion, three hundred ten billion, one million, two hundred thirteen thousand, two hundred twenty".