2261161112 has 16 divisors (see below), whose sum is σ = 4845345360. Its totient is φ = 969069024.

The previous prime is 2261161103. The next prime is 2261161121. The reversal of 2261161112 is 2111611622.

It is an interprime number because it is at equal distance from previous prime (2261161103) and next prime (2261161121).

It is a super-2 number, since 2×2261161112² = 10225699148842153088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20188883 + ... + 20188994.

It is an arithmetic number, because the mean of its divisors is an integer number (302834085).

Almost surely, 2^2261161112 is an apocalyptic number.

It is an amenable number.

2261161112 is an abundant number, since it is smaller than the sum of its proper divisors (2584184248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2261161112 is a wasteful number, since it uses less digits than its factorization.

2261161112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40377890 (or 40377886 counting only the distinct ones).

The product of its digits is 288, while the sum is 23.

The square root of 2261161112 is about 47551.6678151251. The cubic root of 2261161112 is about 1312.5338197423.

Adding to 2261161112 its reverse (2111611622), we get a palindrome (4372772734).

The spelling of 2261161112 in words is "two billion, two hundred sixty-one million, one hundred sixty-one thousand, one hundred twelve".