1220112099965 has 16 divisors (see below), whose sum is σ = 1597306573440. Its totient is φ = 887315968320.

The previous prime is 1220112099953. The next prime is 1220112099977. The reversal of 1220112099965 is 5699902110221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1220112099953) and next prime (1220112099977).

It is not a de Polignac number, because 1220112099965 - 2⁸ = 1220112099709 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 840491 + ... + 1773879.

It is an arithmetic number, because the mean of its divisors is an integer number (99831660840).

Almost surely, 2^{1220112099965} is an apocalyptic number.

It is an amenable number.

1220112099965 is a deficient number, since it is larger than the sum of its proper divisors (377194473475).

1220112099965 is a wasteful number, since it uses less digits than its factorization.

1220112099965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957172.

The product of its (nonzero) digits is 174960, while the sum is 47.

The spelling of 1220112099965 in words is "one trillion, two hundred twenty billion, one hundred twelve million, ninety-nine thousand, nine hundred sixty-five".