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11122130020 = 225556106501
BaseRepresentation
bin10100101101110111…
…00011110001100100
31001201010020202010111
422112323203301210
5140234231130040
65035345502404
7542421355021
oct122673436144
931633222114
1011122130020
1147981749a1
1221a4941a04
131083318c31
147771c2548
15451665dea
hex296ee3c64

11122130020 has 12 divisors (see below), whose sum is σ = 23356473084. Its totient is φ = 4448852000.

The previous prime is 11122130011. The next prime is 11122130021. The reversal of 11122130020 is 2003122111.

It can be written as a sum of positive squares in 2 ways, for example, as 4113426496 + 7008703524 = 64136^2 + 83718^2 .

It is not an unprimeable number, because it can be changed into a prime (11122130021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278053231 + ... + 278053270.

It is an arithmetic number, because the mean of its divisors is an integer number (1946372757).

Almost surely, 211122130020 is an apocalyptic number.

11122130020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11122130020 is an abundant number, since it is smaller than the sum of its proper divisors (12234343064).

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

11122130020 is a wasteful number, since it uses less digits than its factorization.

11122130020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556106510 (or 556106508 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11122130020 its reverse (2003122111), we get a palindrome (13125252131).

The spelling of 11122130020 in words is "eleven billion, one hundred twenty-two million, one hundred thirty thousand, twenty".

Divisors: 1 2 4 5 10 20 556106501 1112213002 2224426004 2780532505 5561065010 11122130020