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22122132231 = 319388107583
BaseRepresentation
bin10100100110100101…
…001111001100000111
32010002201200202101210
4110212211033030013
5330301231212411
614055054022503
71412131010223
oct244645171407
963081622353
1022122132231
119422404411
1243547a7a33
132117244594
1410dc093783
15897205ca6
hex52694f307

22122132231 has 8 divisors (see below), whose sum is σ = 31048606720. Its totient is φ = 13971872952.

The previous prime is 22122132163. The next prime is 22122132371. The reversal of 22122132231 is 13223122122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22122132231 - 213 = 22122124039 is a prime.

It is a super-2 number, since 2×221221322312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22122132198 and 22122132207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22122130231) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 194053735 + ... + 194053848.

It is an arithmetic number, because the mean of its divisors is an integer number (3881075840).

Almost surely, 222122132231 is an apocalyptic number.

22122132231 is a deficient number, since it is larger than the sum of its proper divisors (8926474489).

22122132231 is a wasteful number, since it uses less digits than its factorization.

22122132231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388107605.

The product of its digits is 576, while the sum is 21.

Adding to 22122132231 its reverse (13223122122), we get a palindrome (35345254353).

The spelling of 22122132231 in words is "twenty-two billion, one hundred twenty-two million, one hundred thirty-two thousand, two hundred thirty-one".

Divisors: 1 3 19 57 388107583 1164322749 7374044077 22122132231