1111110220220 has 144 divisors (see below), whose sum is σ = 3188809034208. Its totient is φ = 319680023040.

The previous prime is 1111110220183. The next prime is 1111110220237. The reversal of 1111110220220 is 220220111111.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1111110220195 and 1111110220204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3824147 + ... + 4104426.

It is an arithmetic number, because the mean of its divisors is an integer number (22144507182).

Almost surely, 2^{1111110220220} is an apocalyptic number.

1111110220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111110220220 is an abundant number, since it is smaller than the sum of its proper divisors (2077698813988).

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

1111110220220 is a wasteful number, since it uses less digits than its factorization.

1111110220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7928620 (or 7928611 counting only the distinct ones).

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

Adding to 1111110220220 its reverse (220220111111), we get a palindrome (1331330331331).

The spelling of 1111110220220 in words is "one trillion, one hundred eleven billion, one hundred ten million, two hundred twenty thousand, two hundred twenty".