1112201999965 has 32 divisors (see below), whose sum is σ = 1542829178880. Its totient is φ = 753895296000.

The previous prime is 1112201999921. The next prime is 1112201999989. The reversal of 1112201999965 is 5699991022111.

It is a happy number.

It is not a de Polignac number, because 1112201999965 - 2²¹ = 1112199902813 is a prime.

It is a super-2 number, since 2×1112201999965² (a number of 25 digits) contains 22 as substring.

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, 13043620 + ... + 13128610.

It is an arithmetic number, because the mean of its divisors is an integer number (48213411840).

Almost surely, 2^{1112201999965} is an apocalyptic number.

It is an amenable number.

1112201999965 is a deficient number, since it is larger than the sum of its proper divisors (430627178915).

1112201999965 is an equidigital number, since it uses as much as digits as its factorization.

1112201999965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89293.

The product of its (nonzero) digits is 787320, while the sum is 55.

The spelling of 1112201999965 in words is "one trillion, one hundred twelve billion, two hundred one million, nine hundred ninety-nine thousand, nine hundred sixty-five".