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20000011130220 = 2235111131871143329
BaseRepresentation
bin1001000110000100111011…
…00011110001010101101100
32121210222112011101222110010
410203002131203301111230
510110140010322131340
6110311513412413220
74132644630436332
oct443023543612554
977728464358403
1020000011130220
116410a5897a370
1222b0177317210
13b20cba6acb74
144d2011917b52
1524a3a5d33b80
hex12309d8f156c

20000011130220 has 192 divisors, whose sum is σ = 61664941578240. Its totient is φ = 4802978611200.

The previous prime is 20000011130213. The next prime is 20000011130221. The reversal of 20000011130220 is 2203111000002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20000011130196 and 20000011130205.

It is not an unprimeable number, because it can be changed into a prime (20000011130221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 139467516 + ... + 139610844.

It is an arithmetic number, because the mean of its divisors is an integer number (321171570720).

Almost surely, 220000011130220 is an apocalyptic number.

20000011130220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20000011130220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30832470789120).

20000011130220 is an abundant number, since it is smaller than the sum of its proper divisors (41664930448020).

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

20000011130220 is a wasteful number, since it uses less digits than its factorization.

20000011130220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145336 (or 145334 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20000011130220 its reverse (2203111000002), we get a palindrome (22203122130222).

The spelling of 20000011130220 in words is "twenty trillion, eleven million, one hundred thirty thousand, two hundred twenty".