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220220012031223 = 1237397217448187
BaseRepresentation
bin110010000100100111110111…
…100101101110110011110111
31001212201211100021112202201011
4302010213313211232303313
5212331041041034444343
62100211402113013051
764246241122626661
oct6204476745566367
91055654307482634
10220220012031223
1164194867738866
1220848144554187
1395b58728bc979
143c549c3a9b531
151a6d6641e029d
hexc849f796ecf7

220220012031223 has 8 divisors (see below), whose sum is σ = 220399086138192. Its totient is φ = 220040939617536.

The previous prime is 220220012031203. The next prime is 220220012031301. The reversal of 220220012031223 is 322130210022022.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-220220012031223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220220012031194 and 220220012031203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220220012031203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 491133336 + ... + 491581522.

It is an arithmetic number, because the mean of its divisors is an integer number (27549885767274).

Almost surely, 2220220012031223 is an apocalyptic number.

220220012031223 is a deficient number, since it is larger than the sum of its proper divisors (179074106969).

220220012031223 is a wasteful number, since it uses less digits than its factorization.

220220012031223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846641.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 220220012031223 its reverse (322130210022022), we get a palindrome (542350222053245).

The spelling of 220220012031223 in words is "two hundred twenty trillion, two hundred twenty billion, twelve million, thirty-one thousand, two hundred twenty-three".

Divisors: 1 1237 397217 448187 491357429 554407319 178027495579 220220012031223