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22022132231 = 1117373182849
BaseRepresentation
bin10100100000100111…
…110001001000000111
32002211202112020012002
4110200213301020013
5330100131212411
614041122415515
71406505015101
oct244047611007
962752466162
1022022132231
119380a12990
12432720159b
1320cc600a98
1410ccaa2571
1588d55133b
hex5209f1207

22022132231 has 16 divisors (see below), whose sum is σ = 26124832800. Its totient is φ = 18333204480.

The previous prime is 22022132183. The next prime is 22022132243. The reversal of 22022132231 is 13223122022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22022132231 - 234 = 4842263047 is a prime.

It is a super-2 number, since 2×220221322312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022162231) 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, 1584506 + ... + 1598343.

It is an arithmetic number, because the mean of its divisors is an integer number (1632802050).

Almost surely, 222022132231 is an apocalyptic number.

22022132231 is a deficient number, since it is larger than the sum of its proper divisors (4102700569).

22022132231 is a wasteful number, since it uses less digits than its factorization.

22022132231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3182914.

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

Adding to 22022132231 its reverse (13223122022), we get a palindrome (35245254253).

The spelling of 22022132231 in words is "twenty-two billion, twenty-two million, one hundred thirty-two thousand, two hundred thirty-one".

Divisors: 1 11 17 37 187 407 629 6919 3182849 35011339 54108433 117765413 595192763 1295419543 2002012021 22022132231