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1222102422 = 232191373953
BaseRepresentation
bin100100011010111…
…1100110110010110
310011011121020100200
41020311330312112
510000324234142
6321133521330
742166461552
oct11065746626
93134536320
101222102422
11577932702
122a1343246
13166262838
14b8444862
157245464c
hex48d7cd96

1222102422 has 48 divisors (see below), whose sum is σ = 2671688448. Its totient is φ = 403724160.

The previous prime is 1222102403. The next prime is 1222102463. The reversal of 1222102422 is 2242012221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1222102395 and 1222102404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1281898 + ... + 1282850.

It is an arithmetic number, because the mean of its divisors is an integer number (55660176).

Almost surely, 21222102422 is an apocalyptic number.

1222102422 is an abundant number, since it is smaller than the sum of its proper divisors (1449586026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222102422 is a wasteful number, since it uses less digits than its factorization.

1222102422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1525 (or 1522 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1222102422 is about 34958.5815215663. The cubic root of 1222102422 is about 1069.1431758276.

Adding to 1222102422 its reverse (2242012221), we get a palindrome (3464114643).

The spelling of 1222102422 in words is "one billion, two hundred twenty-two million, one hundred two thousand, four hundred twenty-two".

Divisors: 1 2 3 6 9 18 191 373 382 573 746 953 1119 1146 1719 1906 2238 2859 3357 3438 5718 6714 8577 17154 71243 142486 182023 213729 355469 364046 427458 546069 641187 710938 1066407 1092138 1282374 1638207 2132814 3199221 3276414 6398442 67894579 135789158 203683737 407367474 611051211 1222102422