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1222110423 = 355029261
BaseRepresentation
bin100100011010111…
…1110110011010111
310011011121122100000
41020311332303113
510000330013143
6321134022343
742166524102
oct11065766327
93134548300
101222110423
11577938716
122a13479b3
13166266381
14b8447739
1572456bd3
hex48d7ecd7

1222110423 has 12 divisors (see below), whose sum is σ = 1830651368. Its totient is φ = 814740120.

The previous prime is 1222110391. The next prime is 1222110437. The reversal of 1222110423 is 3240112221.

It is a happy number.

1222110423 is a `hidden beast` number, since 12 + 221 + 10 + 423 = 666.

It is not a de Polignac number, because 1222110423 - 25 = 1222110391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222110396 and 1222110405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222110473) 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 11 ways as a sum of consecutive naturals, for example, 2514388 + ... + 2514873.

Almost surely, 21222110423 is an apocalyptic number.

1222110423 is a deficient number, since it is larger than the sum of its proper divisors (608540945).

1222110423 is an frugal number, since it uses more digits than its factorization.

1222110423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5029276 (or 5029264 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1222110423 is about 34958.6959568002. The cubic root of 1222110423 is about 1069.1455090188.

Adding to 1222110423 its reverse (3240112221), we get a palindrome (4462222644).

The spelling of 1222110423 in words is "one billion, two hundred twenty-two million, one hundred ten thousand, four hundred twenty-three".

Divisors: 1 3 9 27 81 243 5029261 15087783 45263349 135790047 407370141 1222110423