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12201031222 = 219734398353
BaseRepresentation
bin10110101110011110…
…01111011000110110
31011111022101121100021
423113033033120312
5144441430444342
65334410235354
7611232024412
oct132717173066
934438347307
1012201031222
1151a1189386
122446125b5a
1311c59c0303
1483a5cbd42
154b6230567
hex2d73cf636

12201031222 has 16 divisors (see below), whose sum is σ = 19528691760. Its totient is φ = 5700264192.

The previous prime is 12201031159. The next prime is 12201031231. The reversal of 12201031222 is 22213010221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12201031196 and 12201031205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2196403 + ... + 2201950.

It is an arithmetic number, because the mean of its divisors is an integer number (1220543235).

Almost surely, 212201031222 is an apocalyptic number.

12201031222 is a deficient number, since it is larger than the sum of its proper divisors (7327660538).

12201031222 is a wasteful number, since it uses less digits than its factorization.

12201031222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4398447.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12201031222 its reverse (22213010221), we get a palindrome (34414041443).

The spelling of 12201031222 in words is "twelve billion, two hundred one million, thirty-one thousand, two hundred twenty-two".

Divisors: 1 2 19 38 73 146 1387 2774 4398353 8796706 83568707 167137414 321079769 642159538 6100515611 12201031222