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11102122220 = 225779300873
BaseRepresentation
bin10100101011011110…
…01111000011101100
31001122201121020120212
422111233033003230
5140214120402340
65033353001552
7542056324160
oct122557170354
931581536525
1011102122220
114787949822
12219a0b32b8
13107c1320b7
14774694ca0
1544ea12a65
hex295bcf0ec

11102122220 has 24 divisors (see below), whose sum is σ = 26645093664. Its totient is φ = 3806441856.

The previous prime is 11102122189. The next prime is 11102122231. The reversal of 11102122220 is 2222120111.

It is a super-3 number, since 3×111021222203 (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 11102122195 and 11102122204.

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 7 ways as a sum of consecutive naturals, for example, 39650297 + ... + 39650576.

It is an arithmetic number, because the mean of its divisors is an integer number (1110212236).

Almost surely, 211102122220 is an apocalyptic number.

11102122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11102122220 is an abundant number, since it is smaller than the sum of its proper divisors (15542971444).

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

11102122220 is a wasteful number, since it uses less digits than its factorization.

11102122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79300889 (or 79300887 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11102122220 its reverse (2222120111), we get a palindrome (13324242331).

The spelling of 11102122220 in words is "eleven billion, one hundred two million, one hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 79300873 158601746 317203492 396504365 555106111 793008730 1110212222 1586017460 2220424444 2775530555 5551061110 11102122220