111100220011220 has 48 divisors (see below), whose sum is σ = 254522689864128. Its totient is φ = 40399733045760.

The previous prime is 111100220011169. The next prime is 111100220011241. The reversal of 111100220011220 is 22110022001111.

It is a super-3 number, since 3×111100220011220³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111100220011195 and 111100220011204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24235724 + ... + 28452956.

It is an arithmetic number, because the mean of its divisors is an integer number (5302556038836).

Almost surely, 2^{111100220011220} is an apocalyptic number.

111100220011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111100220011220 is an abundant number, since it is smaller than the sum of its proper divisors (143422469852908).

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

111100220011220 is a wasteful number, since it uses less digits than its factorization.

111100220011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4337000 (or 4336998 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111100220011220 its reverse (22110022001111), we get a palindrome (133210242012331).

The spelling of 111100220011220 in words is "one hundred eleven trillion, one hundred billion, two hundred twenty million, eleven thousand, two hundred twenty".