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1222234013 = 711134783313
BaseRepresentation
bin100100011011001…
…1100111110011101
310011011211220212102
41020312130332131
510000342442023
6321140414445
742200550320
oct11066347635
93134756772
101222234013
11577a12560
122a13a7425
131662aa6c0
14b847a7b7
157247d628
hex48d9cf9d

1222234013 has 64 divisors (see below), whose sum is σ = 1701568512. Its totient is φ = 847342080.

The previous prime is 1222234001. The next prime is 1222234073. The reversal of 1222234013 is 3104322221.

It is not a de Polignac number, because 1222234013 - 214 = 1222217629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222234073) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3904745 + ... + 3905057.

It is an arithmetic number, because the mean of its divisors is an integer number (26587008).

Almost surely, 21222234013 is an apocalyptic number.

1222234013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1222234013 is a deficient number, since it is larger than the sum of its proper divisors (479334499).

1222234013 is a wasteful number, since it uses less digits than its factorization.

1222234013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1222234013 is about 34960.4635695810. The cubic root of 1222234013 is about 1069.1815481080.

Adding to 1222234013 its reverse (3104322221), we get a palindrome (4326556234).

The spelling of 1222234013 in words is "one billion, two hundred twenty-two million, two hundred thirty-four thousand, thirteen".

Divisors: 1 7 11 13 47 77 83 91 143 313 329 517 581 611 913 1001 1079 2191 3443 3619 3901 4069 4277 6391 6721 7553 11869 14711 24101 25979 27307 28483 42911 44759 47047 50713 83083 102977 161821 181853 191243 285769 300377 313313 337727 354991 557843 1132747 1221013 1338701 2000383 2103673 2364089 3714997 3904901 8547091 13431143 14725711 15873169 26004979 94018001 111112183 174604859 1222234013