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1222102312223 = 13317321414221
BaseRepresentation
bin10001110010001010111…
…110010110010100011111
311022211110102002220102212
4101302022332112110133
5130010331142442343
62333232005511035
7154202556154052
oct21621276262437
94284412086385
101222102312223
11431321993431
12178a2771247b
138b3226aca70
1443215adca99
1521bca2c8c18
hex11c8af9651f

1222102312223 has 16 divisors (see below), whose sum is σ = 1358754200832. Its totient is φ = 1091552544000.

The previous prime is 1222102312187. The next prime is 1222102312237. The reversal of 1222102312223 is 3222132012221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1222102312223 - 212 = 1222102308127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222102312523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2743253 + ... + 3157473.

It is an arithmetic number, because the mean of its divisors is an integer number (84922137552).

Almost surely, 21222102312223 is an apocalyptic number.

1222102312223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1222102312223 is a deficient number, since it is larger than the sum of its proper divisors (136651888609).

1222102312223 is a wasteful number, since it uses less digits than its factorization.

1222102312223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421586.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1222102312223 its reverse (3222132012221), we get a palindrome (4444234324444).

The spelling of 1222102312223 in words is "one trillion, two hundred twenty-two billion, one hundred two million, three hundred twelve thousand, two hundred twenty-three".

Divisors: 1 13 31 403 7321 95173 226951 414221 2950363 5384873 12840851 166931063 3032511941 39422655233 94007870171 1222102312223