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112112221121112 = 23317274784855689
BaseRepresentation
bin11001011111011100101001…
…000111010110101001011000
3112200221211020110020020211010
4121133130221013112221120
5104143321312101333422
61034235350544533520
732420561232023052
oct3137345107265130
9480854213206733
10112112221121112
11327a4587077273
12106a81240212a0
134a731a224a874
141d9839098c8d2
15ce64697c7b0c
hex65f7291d6a58

112112221121112 has 32 divisors (see below), whose sum is σ = 296767644145200. Its totient is φ = 35172461528064.

The previous prime is 112112221121111. The next prime is 112112221121167. The reversal of 112112221121112 is 211121122211211.

It is a super-2 number, since 2×1121122211211122 (a number of 29 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112112221121111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137392427437 + ... + 137392428252.

Almost surely, 2112112221121112 is an apocalyptic number.

112112221121112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

112112221121112 is an abundant number, since it is smaller than the sum of its proper divisors (184655423024088).

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

112112221121112 is a wasteful number, since it uses less digits than its factorization.

112112221121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274784855715 (or 274784855711 counting only the distinct ones).

The product of its digits is 64, while the sum is 21.

Adding to 112112221121112 its reverse (211121122211211), we get a palindrome (323233343332323).

The spelling of 112112221121112 in words is "one hundred twelve trillion, one hundred twelve billion, two hundred twenty-one million, one hundred twenty-one thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 408 274784855689 549569711378 824354567067 1099139422756 1648709134134 2198278845512 3297418268268 4671342546713 6594836536536 9342685093426 14014027640139 18685370186852 28028055280278 37370740373704 56056110560556 112112221121112