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221331001001230 = 2522133100100123
BaseRepresentation
bin110010010100110010100011…
…101100010100010100001110
31002000200001000000022001101001
4302110302203230110110032
5213002241342224014410
62102422020322210514
764422431351230651
oct6224624354242416
91060601000261331
10221331001001230
1164582a4aa8364a
12209a75204b3a3a
13966656822cc53
143c926987a3898
151a8c4d97a233a
hexc94ca3b1450e

221331001001230 has 8 divisors (see below), whose sum is σ = 398395801802232. Its totient is φ = 88532400400488.

The previous prime is 221331001001207. The next prime is 221331001001233. The reversal of 221331001001230 is 32100100133122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 221331001001198 and 221331001001207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221331001001233) 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, 11066550050052 + ... + 11066550050071.

It is an arithmetic number, because the mean of its divisors is an integer number (49799475225279).

Almost surely, 2221331001001230 is an apocalyptic number.

221331001001230 is a deficient number, since it is larger than the sum of its proper divisors (177064800801002).

221331001001230 is a wasteful number, since it uses less digits than its factorization.

221331001001230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22133100100130.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 221331001001230 its reverse (32100100133122), we get a palindrome (253431101134352).

The spelling of 221331001001230 in words is "two hundred twenty-one trillion, three hundred thirty-one billion, one million, one thousand, two hundred thirty".

Divisors: 1 2 5 10 22133100100123 44266200200246 110665500500615 221331001001230