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220131220222 = 2139978674489
BaseRepresentation
bin1100110100000011010…
…1111101101011111110
3210001012022201122001101
43031000311331223332
512101312043021342
6245043224003314
721622025333104
oct3150065755376
9701168648041
10220131220222
11853a2375991
12367b560053a
13179b1c4bac4
14a9239a3c74
155ad59b03b7
hex3340d7dafe

220131220222 has 8 divisors (see below), whose sum is σ = 330432858000. Its totient is φ = 109986934224.

The previous prime is 220131220207. The next prime is 220131220223. The reversal of 220131220222 is 222022131022.

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

It is a self number, because there is not a number n which added to its sum of digits gives 220131220222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220131220223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39334447 + ... + 39340042.

It is an arithmetic number, because the mean of its divisors is an integer number (41304107250).

Almost surely, 2220131220222 is an apocalyptic number.

220131220222 is a deficient number, since it is larger than the sum of its proper divisors (110301637778).

220131220222 is a wasteful number, since it uses less digits than its factorization.

220131220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78675890.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 220131220222 its reverse (222022131022), we get a palindrome (442153351244).

The spelling of 220131220222 in words is "two hundred twenty billion, one hundred thirty-one million, two hundred twenty thousand, two hundred twenty-two".

Divisors: 1 2 1399 2798 78674489 157348978 110065610111 220131220222