1111220012145 has 16 divisors (see below), whose sum is σ = 1777978920960. Its totient is φ = 592641705984.

The previous prime is 1111220012101. The next prime is 1111220012159. The reversal of 1111220012145 is 5412100221111.

It is not a de Polignac number, because 1111220012145 - 2⁶ = 1111220012081 is a prime.

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, 532752 + ... + 1583118.

It is an arithmetic number, because the mean of its divisors is an integer number (111123682560).

Almost surely, 2^{1111220012145} is an apocalyptic number.

1111220012145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1111220012145 is a deficient number, since it is larger than the sum of its proper divisors (666758908815).

1111220012145 is a wasteful number, since it uses less digits than its factorization.

1111220012145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120904.

The product of its (nonzero) digits is 160, while the sum is 21.

Adding to 1111220012145 its reverse (5412100221111), we get a palindrome (6523320233256).

The spelling of 1111220012145 in words is "one trillion, one hundred eleven billion, two hundred twenty million, twelve thousand, one hundred forty-five".