111220111130 has 16 divisors (see below), whose sum is σ = 202445597160. Its totient is φ = 43988178432.

The previous prime is 111220111103. The next prime is 111220111141. The reversal of 111220111130 is 31111022111.

It can be written as a sum of positive squares in 4 ways, for example, as 33066876649 + 78153234481 = 181843^2 + 279559^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62482319 + ... + 62484098.

Almost surely, 2^111220111130 is an apocalyptic number.

111220111130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111220111130 is a deficient number, since it is larger than the sum of its proper divisors (91225486030).

111220111130 is a wasteful number, since it uses less digits than its factorization.

111220111130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124966513.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 111220111130 its reverse (31111022111), we get a palindrome (142331133241).

The spelling of 111220111130 in words is "one hundred eleven billion, two hundred twenty million, one hundred eleven thousand, one hundred thirty".