1105142212165 has 32 divisors (see below), whose sum is σ = 1361481644160. Its totient is φ = 860897366784.

The previous prime is 1105142212067. The next prime is 1105142212193. The reversal of 1105142212165 is 5612122415011.

It is a cyclic number.

It is not a de Polignac number, because 1105142212165 - 2³⁷ = 967703258693 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13150219 + ... + 13233991.

It is an arithmetic number, because the mean of its divisors is an integer number (42546301380).

Almost surely, 2^{1105142212165} is an apocalyptic number.

It is an amenable number.

1105142212165 is a deficient number, since it is larger than the sum of its proper divisors (256339431995).

1105142212165 is a wasteful number, since it uses less digits than its factorization.

1105142212165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84261.

The product of its (nonzero) digits is 4800, while the sum is 31.

Adding to 1105142212165 its reverse (5612122415011), we get a palindrome (6717264627176).

The spelling of 1105142212165 in words is "one trillion, one hundred five billion, one hundred forty-two million, two hundred twelve thousand, one hundred sixty-five".