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1222112201210 = 25220355474907
BaseRepresentation
bin10001110010001011100…
…100000100100111111010
311022211111002201022120122
4101302023210010213322
5130010341210414320
62333233001453242
7154203036211655
oct21621344044772
94284432638518
101222112201210
1143132752814a
12178a2aaa1222
138b324762c34
144321715489c
1521bcb0cdd25
hex11c8b9049fa

1222112201210 has 16 divisors (see below), whose sum is σ = 2200800550176. Its totient is φ = 488622972048.

The previous prime is 1222112201201. The next prime is 1222112201213. The reversal of 1222112201210 is 121022112221.

It is not an unprimeable number, because it can be changed into a prime (1222112201213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27715424 + ... + 27759483.

It is an arithmetic number, because the mean of its divisors is an integer number (137550034386).

Almost surely, 21222112201210 is an apocalyptic number.

1222112201210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222112201210 is a deficient number, since it is larger than the sum of its proper divisors (978688348966).

1222112201210 is a wasteful number, since it uses less digits than its factorization.

1222112201210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55477117.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1222112201210 its reverse (121022112221), we get a palindrome (1343134313431).

The spelling of 1222112201210 in words is "one trillion, two hundred twenty-two billion, one hundred twelve million, two hundred one thousand, two hundred ten".

Divisors: 1 2 5 10 2203 4406 11015 22030 55474907 110949814 277374535 554749070 122211220121 244422440242 611056100605 1222112201210