111220002065 has 16 divisors (see below), whose sum is σ = 140671242000. Its totient is φ = 84286954752.

The previous prime is 111220002041. The next prime is 111220002067. The reversal of 111220002065 is 560200022111.

It can be written as a sum of positive squares in 8 ways, for example, as 1918352401 + 109301649664 = 43799^2 + 330608^2 .

It is a cyclic number.

It is not a de Polignac number, because 111220002065 - 2¹⁰ = 111220001041 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111220002067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7228490 + ... + 7243859.

It is an arithmetic number, because the mean of its divisors is an integer number (8791952625).

Almost surely, 2^111220002065 is an apocalyptic number.

It is an amenable number.

111220002065 is a deficient number, since it is larger than the sum of its proper divisors (29451239935).

111220002065 is a wasteful number, since it uses less digits than its factorization.

111220002065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14472436.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 111220002065 its reverse (560200022111), we get a palindrome (671420024176).

The spelling of 111220002065 in words is "one hundred eleven billion, two hundred twenty million, two thousand, sixty-five".