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1222220331010 = 257311491114343
BaseRepresentation
bin10001110010010010000…
…000100011100000000010
311022211202122011212210001
4101302102000203200002
5130011101401043020
62333251423230214
7154205521254130
oct21622200434002
94284678155701
101222220331010
11431382571718
12178a5b14836a
138b340c91c73
1443227660750
1521bd583c50a
hex11c92023802

1222220331010 has 64 divisors (see below), whose sum is σ = 2527525638144. Its totient is φ = 416845195200.

The previous prime is 1222220331001. The next prime is 1222220331011. The reversal of 1222220331010 is 101330222221.

It is not an unprimeable number, because it can be changed into a prime (1222220331011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10631899 + ... + 10746241.

It is an arithmetic number, because the mean of its divisors is an integer number (39492588096).

Almost surely, 21222220331010 is an apocalyptic number.

1222220331010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222220331010 is an abundant number, since it is smaller than the sum of its proper divisors (1305305307134).

1222220331010 is a wasteful number, since it uses less digits than its factorization.

1222220331010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115159.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1222220331010 its reverse (101330222221), we get a palindrome (1323550553231).

The spelling of 1222220331010 in words is "one trillion, two hundred twenty-two billion, two hundred twenty million, three hundred thirty-one thousand, ten".

Divisors: 1 2 5 7 10 14 35 70 311 491 622 982 1555 2177 2455 3110 3437 4354 4910 6874 10885 17185 21770 34370 114343 152701 228686 305402 571715 763505 800401 1068907 1143430 1527010 1600802 2137814 4002005 5344535 8004010 10689070 35560673 56142413 71121346 112284826 177803365 248924711 280712065 355606730 392996891 497849422 561424130 785993782 1244623555 1964984455 2489247110 3929968910 17460290443 34920580886 87301452215 122222033101 174602904430 244444066202 611110165505 1222220331010