111113220009 has 32 divisors (see below), whose sum is σ = 170185766400. Its totient is φ = 63774466560.

The previous prime is 111113220007. The next prime is 111113220011. The reversal of 111113220009 is 900022311111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111113220007) and next prime (111113220011).

It is not a de Polignac number, because 111113220009 - 2¹ = 111113220007 is a prime.

It is a super-2 number, since 2×111113220009² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111113220007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1827897 + ... + 1887705.

It is an arithmetic number, because the mean of its divisors is an integer number (5318305200).

Almost surely, 2^111113220009 is an apocalyptic number.

111113220009 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

111113220009 is a deficient number, since it is larger than the sum of its proper divisors (59072546391).

111113220009 is a wasteful number, since it uses less digits than its factorization.

111113220009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62805.

The product of its (nonzero) digits is 108, while the sum is 21.

The spelling of 111113220009 in words is "one hundred eleven billion, one hundred thirteen million, two hundred twenty thousand, nine".