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121000230230220 = 22325111312577512417
BaseRepresentation
bin11011100000110010001111…
…101111011001100011001100
3120212102111202002102100220200
4123200302033233121203030
5111324431432414331340
61105202423254013500
734325656334645265
oct3340621757314314
9525374662370820
10121000230230220
1135610a0054a510
12116a27a4347290
1352693713054c3
1421c4629cc796c
15dec7611e8330
hex6e0c8fbd98cc

121000230230220 has 576 divisors, whose sum is σ = 405734243346432. Its totient is φ = 28945612800000.

The previous prime is 121000230230219. The next prime is 121000230230239. The reversal of 121000230230220 is 22032032000121.

121000230230220 is a `hidden beast` number, since 1 + 210 + 0 + 0 + 2 + 3 + 0 + 230 + 220 = 666.

It is a super-3 number, since 3×1210002302302203 (a number of 43 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 121000230230193 and 121000230230202.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 50062154452 + ... + 50062156868.

It is an arithmetic number, because the mean of its divisors is an integer number (704399728032).

Almost surely, 2121000230230220 is an apocalyptic number.

121000230230220 is a gapful number since it is divisible by the number (10) 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 121000230230220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202867121673216).

121000230230220 is an abundant number, since it is smaller than the sum of its proper divisors (284734013116212).

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

121000230230220 is a wasteful number, since it uses less digits than its factorization.

121000230230220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3582 (or 3577 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 121000230230220 its reverse (22032032000121), we get a palindrome (143032262230341).

The spelling of 121000230230220 in words is "one hundred twenty-one trillion, two hundred thirty million, two hundred thirty thousand, two hundred twenty".